1264518672725 has 36 divisors (see below), whose sum is σ = 1989822205728. Its totient is φ = 788271372000.

The previous prime is 1264518672679. The next prime is 1264518672779. The reversal of 1264518672725 is 5272768154621.

It is not a de Polignac number, because 1264518672725 - 2²⁸ = 1264250237269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 46907441 + ... + 46934390.

It is an arithmetic number, because the mean of its divisors is an integer number (55272839048).

Almost surely, 2^{1264518672725} is an apocalyptic number.

It is an amenable number.

1264518672725 is a deficient number, since it is larger than the sum of its proper divisors (725303533003).

1264518672725 is a wasteful number, since it uses less digits than its factorization.

1264518672725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93841866 (or 93841854 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 56.

The spelling of 1264518672725 in words is "one trillion, two hundred sixty-four billion, five hundred eighteen million, six hundred seventy-two thousand, seven hundred twenty-five".