12507217968 has 80 divisors (see below), whose sum is σ = 39098211840. Its totient is φ = 3363283968.

The previous prime is 12507217963. The next prime is 12507217979. The reversal of 12507217968 is 86971270521.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (12507217963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1089108 + ... + 1100531.

It is an arithmetic number, because the mean of its divisors is an integer number (488727648).

Almost surely, 2^12507217968 is an apocalyptic number.

It is an amenable number.

12507217968 is an abundant number, since it is smaller than the sum of its proper divisors (26590993872).

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

12507217968 is a wasteful number, since it uses less digits than its factorization.

12507217968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189674 (or 2189668 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 48.

The spelling of 12507217968 in words is "twelve billion, five hundred seven million, two hundred seventeen thousand, nine hundred sixty-eight".