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945907759769 = 7135129679967
BaseRepresentation
bin11011100001111000111…
…11101111101010011001
310100102112221022220121012
431300330133233222121
5110444204341303034
62002313302023305
7125224322203520
oct15607437575231
93312487286535
10945907759769
113351802a8225
121333a6717b35
136b27777c8bb
1433ad44314b7
15199129cacce
hexdc3c7efa99

945907759769 has 4 divisors (see below), whose sum is σ = 1081037439744. Its totient is φ = 810778079796.

The previous prime is 945907759763. The next prime is 945907759789. The reversal of 945907759769 is 967957709549.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 945907759769 - 212 = 945907755673 is a prime.

It is a super-2 number, since 2×9459077597692 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 945907759769.

It is not an unprimeable number, because it can be changed into a prime (945907759763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67564839977 + ... + 67564839990.

It is an arithmetic number, because the mean of its divisors is an integer number (270259359936).

Almost surely, 2945907759769 is an apocalyptic number.

It is an amenable number.

945907759769 is a deficient number, since it is larger than the sum of its proper divisors (135129679975).

945907759769 is a wasteful number, since it uses less digits than its factorization.

945907759769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135129679974.

The product of its (nonzero) digits is 1350253800, while the sum is 77.

The spelling of 945907759769 in words is "nine hundred forty-five billion, nine hundred seven million, seven hundred fifty-nine thousand, seven hundred sixty-nine".

Divisors: 1 7 135129679967 945907759769