90678333816 has 64 divisors (see below), whose sum is σ = 287867731200. Its totient is φ = 25908094944.

The previous prime is 90678333799. The next prime is 90678333847. The reversal of 90678333816 is 61833387609.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent 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, 29984710 + ... + 29987733.

It is an arithmetic number, because the mean of its divisors is an integer number (4497933300).

Almost surely, 2^90678333816 is an apocalyptic number.

It is an amenable number.

90678333816 is an abundant number, since it is smaller than the sum of its proper divisors (197189397384).

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

90678333816 is a wasteful number, since it uses less digits than its factorization.

90678333816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59972465 (or 59972455 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 90678333816 in words is "ninety billion, six hundred seventy-eight million, three hundred thirty-three thousand, eight hundred sixteen".