12851237269 has 16 divisors (see below), whose sum is σ = 14544420352. Its totient is φ = 11273629248.

The previous prime is 12851237239. The next prime is 12851237297. The reversal of 12851237269 is 96273215821.

It is a cyclic number.

It is not a de Polignac number, because 12851237269 - 2¹³ = 12851229077 is a prime.

It is a super-2 number, since 2×12851237269² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12851237239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289989 + ... + 331354.

It is an arithmetic number, because the mean of its divisors is an integer number (909026272).

Almost surely, 2^12851237269 is an apocalyptic number.

It is an amenable number.

12851237269 is a deficient number, since it is larger than the sum of its proper divisors (1693183083).

12851237269 is a wasteful number, since it uses less digits than its factorization.

12851237269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621436.

The product of its digits is 362880, while the sum is 46.

The spelling of 12851237269 in words is "twelve billion, eight hundred fifty-one million, two hundred thirty-seven thousand, two hundred sixty-nine".