18970690810 has 32 divisors (see below), whose sum is σ = 34411547520. Its totient is φ = 7529602368.

The previous prime is 18970690759. The next prime is 18970690829. The reversal of 18970690810 is 1809607981.

It is a super-2 number, since 2×18970690810² (a number of 21 digits) contains 22 as substring.

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, 4908939 + ... + 4912801.

It is an arithmetic number, because the mean of its divisors is an integer number (1075360860).

Almost surely, 2^18970690810 is an apocalyptic number.

18970690810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18970690810 is a deficient number, since it is larger than the sum of its proper divisors (15440856710).

18970690810 is a wasteful number, since it uses less digits than its factorization.

18970690810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7542.

The product of its (nonzero) digits is 217728, while the sum is 49.

The spelling of 18970690810 in words is "eighteen billion, nine hundred seventy million, six hundred ninety thousand, eight hundred ten".