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12757598905 = 55095718779
BaseRepresentation
bin10111110000110100…
…11000001010111001
31012221002200011200011
423320122120022321
5202111421131110
65505531341521
7631100541622
oct137032301271
935832604604
1012757598905
115457371977
1225805b18a1
1312840bccbc
148904aaa49
154ea01e48a
hex2f86982b9

12757598905 has 16 divisors (see below), whose sum is σ = 15367809600. Its totient is φ = 10167030720.

The previous prime is 12757598897. The next prime is 12757598911. The reversal of 12757598905 is 50989575721.

It is a happy number.

12757598905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12757598905 - 23 = 12757598897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12757598905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1448806 + ... + 1457584.

It is an arithmetic number, because the mean of its divisors is an integer number (960488100).

Almost surely, 212757598905 is an apocalyptic number.

It is an amenable number.

12757598905 is a deficient number, since it is larger than the sum of its proper divisors (2610210695).

12757598905 is an equidigital number, since it uses as much as digits as its factorization.

12757598905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9864.

The product of its (nonzero) digits is 7938000, while the sum is 58.

The spelling of 12757598905 in words is "twelve billion, seven hundred fifty-seven million, five hundred ninety-eight thousand, nine hundred five".

Divisors: 1 5 509 571 2545 2855 8779 43895 290639 1453195 4468511 5012809 22342555 25064045 2551519781 12757598905