18706906632 has 32 divisors (see below), whose sum is σ = 46770655680. Its totient is φ = 6235183680.

The previous prime is 18706906619. The next prime is 18706906633. The reversal of 18706906632 is 23660960781.

It is not an unprimeable number, because it can be changed into a prime (18706906633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559293 + ... + 591795.

It is an arithmetic number, because the mean of its divisors is an integer number (1461582990).

Almost surely, 2^18706906632 is an apocalyptic number.

18706906632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18706906632 is an abundant number, since it is smaller than the sum of its proper divisors (28063749048).

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

18706906632 is a wasteful number, since it uses less digits than its factorization.

18706906632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56493 (or 56489 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 18706906632 in words is "eighteen billion, seven hundred six million, nine hundred six thousand, six hundred thirty-two".