12641120764 has 24 divisors (see below), whose sum is σ = 22894320960. Its totient is φ = 6100067904.

The previous prime is 12641120753. The next prime is 12641120771. The reversal of 12641120764 is 46702114621.

It is a super-4 number, since 4×12641120764⁴ (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 273562 + ... + 316414.

It is an arithmetic number, because the mean of its divisors is an integer number (953930040).

Almost surely, 2^12641120764 is an apocalyptic number.

It is an amenable number.

12641120764 is a deficient number, since it is larger than the sum of its proper divisors (10253200196).

12641120764 is a wasteful number, since it uses less digits than its factorization.

12641120764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45429 (or 45427 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 12641120764 in words is "twelve billion, six hundred forty-one million, one hundred twenty thousand, seven hundred sixty-four".