91927282820 has 24 divisors (see below), whose sum is σ = 199274627328. Its totient is φ = 35584754400.

The previous prime is 91927282807. The next prime is 91927282829. The reversal of 91927282820 is 2828272919.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (91927282829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74134286 + ... + 74135525.

It is an arithmetic number, because the mean of its divisors is an integer number (8303109472).

Almost surely, 2^91927282820 is an apocalyptic number.

It is an amenable number.

91927282820 is an abundant number, since it is smaller than the sum of its proper divisors (107347344508).

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

91927282820 is a wasteful number, since it uses less digits than its factorization.

91927282820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148269851 (or 148269849 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 91927282820 in words is "ninety-one billion, nine hundred twenty-seven million, two hundred eighty-two thousand, eight hundred twenty".