12762555645 has 128 divisors (see below), whose sum is σ = 25293864960. Its totient is φ = 5364817920.

The previous prime is 12762555613. The next prime is 12762555649. The reversal of 12762555645 is 54655526721.

It is not a de Polignac number, because 12762555645 - 2⁵ = 12762555613 is a prime.

Its product of digits (2520000) is a multiple of the sum of its prime divisors (875).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12762555594 and 12762555603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12762555649) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 27564684 + ... + 27565146.

It is an arithmetic number, because the mean of its divisors is an integer number (197608320).

Almost surely, 2^12762555645 is an apocalyptic number.

12762555645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12762555645 is a deficient number, since it is larger than the sum of its proper divisors (12531309315).

12762555645 is a wasteful number, since it uses less digits than its factorization.

12762555645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875.

The product of its digits is 2520000, while the sum is 48.

The spelling of 12762555645 in words is "twelve billion, seven hundred sixty-two million, five hundred fifty-five thousand, six hundred forty-five".