90681964182 has 20 divisors (see below), whose sum is σ = 203194771956. Its totient is φ = 30227321340.

The previous prime is 90681964133. The next prime is 90681964193. The reversal of 90681964182 is 28146918609.

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 9 ways as a sum of consecutive naturals, for example, 279882444 + ... + 279882767.

Almost surely, 2^90681964182 is an apocalyptic number.

90681964182 is an abundant number, since it is smaller than the sum of its proper divisors (112512807774).

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

90681964182 is a wasteful number, since it uses less digits than its factorization.

90681964182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559765225 (or 559765216 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 90681964182 in words is "ninety billion, six hundred eighty-one million, nine hundred sixty-four thousand, one hundred eighty-two".