12777501275 has 48 divisors (see below), whose sum is σ = 19816945920. Its totient is φ = 7939689600.

The previous prime is 12777501173. The next prime is 12777501277. The reversal of 12777501275 is 57210577721.

It is not a de Polignac number, because 12777501275 - 2²⁰ = 12776452699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12777501277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 599756 + ... + 620694.

It is an arithmetic number, because the mean of its divisors is an integer number (412853040).

Almost surely, 2^12777501275 is an apocalyptic number.

12777501275 is a deficient number, since it is larger than the sum of its proper divisors (7039444645).

12777501275 is a wasteful number, since it uses less digits than its factorization.

12777501275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21284 (or 21279 counting only the distinct ones).

The product of its (nonzero) digits is 240100, while the sum is 44.

The spelling of 12777501275 in words is "twelve billion, seven hundred seventy-seven million, five hundred one thousand, two hundred seventy-five".