18464487201 has 12 divisors (see below), whose sum is σ = 26880934912. Its totient is φ = 12212730936.

The previous prime is 18464487199. The next prime is 18464487229. The reversal of 18464487201 is 10278446481.

18464487201 is a `hidden beast` number, since 184 + 6 + 448 + 7 + 20 + 1 = 666.

It is not a de Polignac number, because 18464487201 - 2¹ = 18464487199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18464487001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8076061 + ... + 8078346.

Almost surely, 2^18464487201 is an apocalyptic number.

It is an amenable number.

18464487201 is a deficient number, since it is larger than the sum of its proper divisors (8416447711).

18464487201 is a wasteful number, since it uses less digits than its factorization.

18464487201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16154540 (or 16154537 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The spelling of 18464487201 in words is "eighteen billion, four hundred sixty-four million, four hundred eighty-seven thousand, two hundred one".