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12634824797 = 71804974971
BaseRepresentation
bin10111100010001100…
…00010000001011101
31012121112122121020222
423301012002001131
5201334003343142
65445424051125
7625050144620
oct136106020135
935545577228
1012634824797
1153a4035971
122547463aa5
1312648344ba
1487c06bdb7
154de36bbd2
hex2f118205d

12634824797 has 4 divisors (see below), whose sum is σ = 14439799776. Its totient is φ = 10829849820.

The previous prime is 12634824791. The next prime is 12634824823. The reversal of 12634824797 is 79742843621.

It is a happy number.

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 12634824797 - 212 = 12634820701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12634824791) 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, 902487479 + ... + 902487492.

It is an arithmetic number, because the mean of its divisors is an integer number (3609949944).

Almost surely, 212634824797 is an apocalyptic number.

It is an amenable number.

12634824797 is a deficient number, since it is larger than the sum of its proper divisors (1804974979).

12634824797 is an equidigital number, since it uses as much as digits as its factorization.

12634824797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804974978.

The product of its digits is 4064256, while the sum is 53.

The spelling of 12634824797 in words is "twelve billion, six hundred thirty-four million, eight hundred twenty-four thousand, seven hundred ninety-seven".

Divisors: 1 7 1804974971 12634824797