18406372670 has 32 divisors (see below), whose sum is σ = 37934606016. Its totient is φ = 6299078400.

The previous prime is 18406372669. The next prime is 18406372693. The reversal of 18406372670 is 7627360481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205151 + ... + 280890.

It is an arithmetic number, because the mean of its divisors is an integer number (1185456438).

Almost surely, 2^18406372670 is an apocalyptic number.

18406372670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18406372670 is an abundant number, since it is smaller than the sum of its proper divisors (19528233346).

18406372670 is a wasteful number, since it uses less digits than its factorization.

18406372670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486596.

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 18406372670 in words is "eighteen billion, four hundred six million, three hundred seventy-two thousand, six hundred seventy".