91928282820 has 48 divisors (see below), whose sum is σ = 280799120448. Its totient is φ = 22285644160.

The previous prime is 91928282819. The next prime is 91928282821. The reversal of 91928282820 is 2828282919.

It is an interprime number because it is at equal distance from previous prime (91928282819) and next prime (91928282821).

It is not an unprimeable number, because it can be changed into a prime (91928282821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69641979 + ... + 69643298.

It is an arithmetic number, because the mean of its divisors is an integer number (5849981676).

Almost surely, 2^91928282820 is an apocalyptic number.

It is an amenable number.

91928282820 is an abundant number, since it is smaller than the sum of its proper divisors (188870837628).

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

91928282820 is a wasteful number, since it uses less digits than its factorization.

91928282820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139285300 (or 139285298 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 51.

The spelling of 91928282820 in words is "ninety-one billion, nine hundred twenty-eight million, two hundred eighty-two thousand, eight hundred twenty".