46531861818 has 32 divisors (see below), whose sum is σ = 100260779136. Its totient is φ = 14312023488.

The previous prime is 46531861759. The next prime is 46531861837. The reversal of 46531861818 is 81816813564.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93780 + ... + 319152.

It is an arithmetic number, because the mean of its divisors is an integer number (3133149348).

Almost surely, 2^46531861818 is an apocalyptic number.

46531861818 is an abundant number, since it is smaller than the sum of its proper divisors (53728917318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

46531861818 is a wasteful number, since it uses less digits than its factorization.

46531861818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228038.

The product of its digits is 1105920, while the sum is 51.

The spelling of 46531861818 in words is "forty-six billion, five hundred thirty-one million, eight hundred sixty-one thousand, eight hundred eighteen".