18747970005 has 16 divisors (see below), whose sum is σ = 31761267264. Its totient is φ = 9410745600.

The previous prime is 18747969979. The next prime is 18747970009. The reversal of 18747970005 is 50007974781.

It is not a de Polignac number, because 18747970005 - 2⁸ = 18747969749 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18747970009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36760471 + ... + 36760980.

It is an arithmetic number, because the mean of its divisors is an integer number (1985079204).

Almost surely, 2^18747970005 is an apocalyptic number.

18747970005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18747970005 is a deficient number, since it is larger than the sum of its proper divisors (13013297259).

18747970005 is a wasteful number, since it uses less digits than its factorization.

18747970005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73521476.

The product of its (nonzero) digits is 493920, while the sum is 48.

The spelling of 18747970005 in words is "eighteen billion, seven hundred forty-seven million, nine hundred seventy thousand, five".