91793760980 has 12 divisors (see below), whose sum is σ = 192766898100. Its totient is φ = 36717504384.

The previous prime is 91793760917. The next prime is 91793760991. The reversal of 91793760980 is 8906739719.

It can be written as a sum of positive squares in 2 ways, for example, as 59685421636 + 32108339344 = 244306^2 + 179188^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2294844005 + ... + 2294844044.

It is an arithmetic number, because the mean of its divisors is an integer number (16063908175).

Almost surely, 2^91793760980 is an apocalyptic number.

It is an amenable number.

91793760980 is an abundant number, since it is smaller than the sum of its proper divisors (100973137120).

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

91793760980 is a wasteful number, since it uses less digits than its factorization.

91793760980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4589688058 (or 4589688056 counting only the distinct ones).

The product of its (nonzero) digits is 5143824, while the sum is 59.

The spelling of 91793760980 in words is "ninety-one billion, seven hundred ninety-three million, seven hundred sixty thousand, nine hundred eighty".