12851286965 has 32 divisors (see below), whose sum is σ = 17013110400. Its totient is φ = 9241312000.

The previous prime is 12851286949. The next prime is 12851287021. The reversal of 12851286965 is 56968215821.

It is not a de Polignac number, because 12851286965 - 2⁴ = 12851286949 is a prime.

It is a super-2 number, since 2×12851286965² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6592811 + ... + 6594759.

It is an arithmetic number, because the mean of its divisors is an integer number (531659700).

Almost surely, 2^12851286965 is an apocalyptic number.

It is an amenable number.

12851286965 is a deficient number, since it is larger than the sum of its proper divisors (4161823435).

12851286965 is a wasteful number, since it uses less digits than its factorization.

12851286965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253.

The product of its digits is 2073600, while the sum is 53.

The spelling of 12851286965 in words is "twelve billion, eight hundred fifty-one million, two hundred eighty-six thousand, nine hundred sixty-five".