18868670552 has 16 divisors (see below), whose sum is σ = 36520008000. Its totient is φ = 9130001760.

The previous prime is 18868670551. The next prime is 18868670567. The reversal of 18868670552 is 25507686881.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18868670551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38041427 + ... + 38041922.

It is an arithmetic number, because the mean of its divisors is an integer number (2282500500).

Almost surely, 2^18868670552 is an apocalyptic number.

It is an amenable number.

18868670552 is a deficient number, since it is larger than the sum of its proper divisors (17651337448).

18868670552 is a wasteful number, since it uses less digits than its factorization.

18868670552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76083386 (or 76083382 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 18868670552 in words is "eighteen billion, eight hundred sixty-eight million, six hundred seventy thousand, five hundred fifty-two".