18731065306552 has 16 divisors (see below), whose sum is σ = 35565313874400. Its totient is φ = 9246981606720.

The previous prime is 18731065306537. The next prime is 18731065306573. The reversal of 18731065306552 is 25560356013781.

It is a self number, because there is not a number n which added to its sum of digits gives 18731065306552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14818880149 + ... + 14818881412.

It is an arithmetic number, because the mean of its divisors is an integer number (2222832117150).

Almost surely, 2^{18731065306552} is an apocalyptic number.

It is an amenable number.

18731065306552 is a deficient number, since it is larger than the sum of its proper divisors (16834248567848).

18731065306552 is a wasteful number, since it uses less digits than its factorization.

18731065306552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29637761646 (or 29637761642 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 18731065306552 in words is "eighteen trillion, seven hundred thirty-one billion, sixty-five million, three hundred six thousand, five hundred fifty-two".