12625013752640 has 56 divisors (see below), whose sum is σ = 30064628999400. Its totient is φ = 5049784608768.

The previous prime is 12625013752601. The next prime is 12625013752669. The reversal of 12625013752640 is 4625731052621.

It can be written as a sum of positive squares in 4 ways, for example, as 129128110336 + 12495885642304 = 359344^2 + 3534952^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12625013752591 and 12625013752600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6564086 + ... + 8266634.

Almost surely, 2^{12625013752640} is an apocalyptic number.

12625013752640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12625013752640 is an abundant number, since it is smaller than the sum of its proper divisors (17439615246760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12625013752640 is a wasteful number, since it uses less digits than its factorization.

12625013752640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725739 (or 1725729 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 12625013752640 in words is "twelve trillion, six hundred twenty-five billion, thirteen million, seven hundred fifty-two thousand, six hundred forty".