18870913467 has 24 divisors (see below), whose sum is σ = 32521304400. Its totient is φ = 10783378368.

The previous prime is 18870913429. The next prime is 18870913511. The reversal of 18870913467 is 76431907881.

18870913467 is a `hidden beast` number, since 18 + 87 + 0 + 91 + 3 + 467 = 666.

It is not a de Polignac number, because 18870913467 - 2¹⁰ = 18870912443 is a prime.

It is a super-2 number, since 2×18870913467² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18870913417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7130542 + ... + 7133187.

It is an arithmetic number, because the mean of its divisors is an integer number (1355054350).

Almost surely, 2^18870913467 is an apocalyptic number.

18870913467 is a deficient number, since it is larger than the sum of its proper divisors (13650390933).

18870913467 is a wasteful number, since it uses less digits than its factorization.

18870913467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14263752 (or 14263739 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 18870913467 in words is "eighteen billion, eight hundred seventy million, nine hundred thirteen thousand, four hundred sixty-seven".