12520607952 has 40 divisors (see below), whose sum is σ = 32489976064. Its totient is φ = 4154817024.

The previous prime is 12520607951. The next prime is 12520607969. The reversal of 12520607952 is 25970602521.

It is a self number, because there is not a number n which added to its sum of digits gives 12520607952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12520607951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 574153 + ... + 595560.

Almost surely, 2^12520607952 is an apocalyptic number.

12520607952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12520607952 is an abundant number, since it is smaller than the sum of its proper divisors (19969368112).

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

12520607952 is a wasteful number, since it uses less digits than its factorization.

12520607952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169947 (or 1169941 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The spelling of 12520607952 in words is "twelve billion, five hundred twenty million, six hundred seven thousand, nine hundred fifty-two".