18073274401 has 16 divisors (see below), whose sum is σ = 22761337984. Its totient is φ = 13967178624.

The previous prime is 18073274399. The next prime is 18073274441. The reversal of 18073274401 is 10447237081.

It is not a de Polignac number, because 18073274401 - 2¹ = 18073274399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18073274441) 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, 2305476 + ... + 2313301.

It is an arithmetic number, because the mean of its divisors is an integer number (1422583624).

Almost surely, 2^18073274401 is an apocalyptic number.

It is an amenable number.

18073274401 is a deficient number, since it is larger than the sum of its proper divisors (4688063583).

18073274401 is a wasteful number, since it uses less digits than its factorization.

18073274401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618840.

The product of its (nonzero) digits is 37632, while the sum is 37.

The spelling of 18073274401 in words is "eighteen billion, seventy-three million, two hundred seventy-four thousand, four hundred one".