18966527970 has 64 divisors (see below), whose sum is σ = 49379137920. Its totient is φ = 4634592768.

The previous prime is 18966527933. The next prime is 18966527971. The reversal of 18966527970 is 7972566981.

It is not an unprimeable number, because it can be changed into a prime (18966527971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124060 + ... + 230919.

It is an arithmetic number, because the mean of its divisors is an integer number (771549030).

Almost surely, 2^18966527970 is an apocalyptic number.

18966527970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18966527970 is an abundant number, since it is smaller than the sum of its proper divisors (30412609950).

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

18966527970 is a wasteful number, since it uses less digits than its factorization.

18966527970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355139.

The product of its (nonzero) digits is 11430720, while the sum is 60.

The spelling of 18966527970 in words is "eighteen billion, nine hundred sixty-six million, five hundred twenty-seven thousand, nine hundred seventy".