18071973962 has 32 divisors (see below), whose sum is σ = 31994757120. Its totient is φ = 7491806640.

The previous prime is 18071973961. The next prime is 18071973967. The reversal of 18071973962 is 26937917081.

It is not an unprimeable number, because it can be changed into a prime (18071973961) 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, 1062239 + ... + 1079117.

It is an arithmetic number, because the mean of its divisors is an integer number (999836160).

Almost surely, 2^18071973962 is an apocalyptic number.

18071973962 is a deficient number, since it is larger than the sum of its proper divisors (13922783158).

18071973962 is a wasteful number, since it uses less digits than its factorization.

18071973962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19386.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The spelling of 18071973962 in words is "eighteen billion, seventy-one million, nine hundred seventy-three thousand, nine hundred sixty-two".