12537405364 has 24 divisors (see below), whose sum is σ = 24340730400. Its totient is φ = 5602229280.

The previous prime is 12537405319. The next prime is 12537405371. The reversal of 12537405364 is 46350473521.

It is a happy number.

It is a super-2 number, since 2×12537405364² (a number of 21 digits) contains 22 as substring.

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, 2412159 + ... + 2417350.

It is an arithmetic number, because the mean of its divisors is an integer number (1014197100).

Almost surely, 2^12537405364 is an apocalyptic number.

It is an amenable number.

12537405364 is a deficient number, since it is larger than the sum of its proper divisors (11803325036).

12537405364 is a wasteful number, since it uses less digits than its factorization.

12537405364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4829583 (or 4829581 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 40.

Adding to 12537405364 its reverse (46350473521), we get a palindrome (58887878885).

The spelling of 12537405364 in words is "twelve billion, five hundred thirty-seven million, four hundred five thousand, three hundred sixty-four".