18537962964 has 12 divisors (see below), whose sum is σ = 43255246944. Its totient is φ = 6179320984.

The previous prime is 18537962957. The next prime is 18537963019. The reversal of 18537962964 is 46926973581.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 18537962898 and 18537962907.

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, 772415112 + ... + 772415135.

It is an arithmetic number, because the mean of its divisors is an integer number (3604603912).

Almost surely, 2^18537962964 is an apocalyptic number.

It is an amenable number.

18537962964 is an abundant number, since it is smaller than the sum of its proper divisors (24717283980).

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

18537962964 is a wasteful number, since it uses less digits than its factorization.

18537962964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544830254 (or 1544830252 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 60.

The spelling of 18537962964 in words is "eighteen billion, five hundred thirty-seven million, nine hundred sixty-two thousand, nine hundred sixty-four".