12537452104 has 8 divisors (see below), whose sum is σ = 23507722710. Its totient is φ = 6268726048.

The previous prime is 12537452101. The next prime is 12537452159. The reversal of 12537452104 is 40125473521.

It can be written as a sum of positive squares in only one way, i.e., 12501476100 + 35976004 = 111810^2 + 5998^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 12537452104.

It is not an unprimeable number, because it can be changed into a prime (12537452101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 783590749 + ... + 783590764.

Almost surely, 2^12537452104 is an apocalyptic number.

It is an amenable number.

12537452104 is a deficient number, since it is larger than the sum of its proper divisors (10970270606).

12537452104 is a wasteful number, since it uses less digits than its factorization.

12537452104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567181519 (or 1567181515 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 12537452104 in words is "twelve billion, five hundred thirty-seven million, four hundred fifty-two thousand, one hundred four".