46917820818 has 96 divisors (see below), whose sum is σ = 112895078400. Its totient is φ = 13961829600.

The previous prime is 46917820801. The next prime is 46917820841. The reversal of 46917820818 is 81802871964.

46917820818 is a `hidden beast` number, since 469 + 178 + 2 + 0 + 8 + 1 + 8 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16809003 + ... + 16811793.

It is an arithmetic number, because the mean of its divisors is an integer number (1175990400).

Almost surely, 2^46917820818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46917820818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56447539200).

46917820818 is an abundant number, since it is smaller than the sum of its proper divisors (65977257582).

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

46917820818 is a wasteful number, since it uses less digits than its factorization.

46917820818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4308 (or 4305 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 46917820818 in words is "forty-six billion, nine hundred seventeen million, eight hundred twenty thousand, eight hundred eighteen".