18746040364 has 12 divisors (see below), whose sum is σ = 33200819064. Its totient is φ = 9260092064.

The previous prime is 18746040347. The next prime is 18746040389. The reversal of 18746040364 is 46304064781.

It is a self number, because there is not a number n which added to its sum of digits gives 18746040364.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28231657 + ... + 28232320.

It is an arithmetic number, because the mean of its divisors is an integer number (2766734922).

Almost surely, 2^18746040364 is an apocalyptic number.

It is an amenable number.

18746040364 is a deficient number, since it is larger than the sum of its proper divisors (14454778700).

18746040364 is a wasteful number, since it uses less digits than its factorization.

18746040364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56464064 (or 56464062 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 18746040364 in words is "eighteen billion, seven hundred forty-six million, forty thousand, three hundred sixty-four".