18695417193970 has 32 divisors (see below), whose sum is σ = 36712320011136. Its totient is φ = 6798089270400.

The previous prime is 18695417193913. The next prime is 18695417193989. The reversal of 18695417193970 is 7939171459681.

It is a self number, because there is not a number n which added to its sum of digits gives 18695417193970.

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, 36507 + ... + 6114913.

It is an arithmetic number, because the mean of its divisors is an integer number (1147260000348).

Almost surely, 2^{18695417193970} is an apocalyptic number.

18695417193970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18695417193970 is a deficient number, since it is larger than the sum of its proper divisors (18016902817166).

18695417193970 is a wasteful number, since it uses less digits than its factorization.

18695417193970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6106386.

The product of its (nonzero) digits is 102876480, while the sum is 70.

The spelling of 18695417193970 in words is "eighteen trillion, six hundred ninety-five billion, four hundred seventeen million, one hundred ninety-three thousand, nine hundred seventy".