91763904140 has 48 divisors (see below), whose sum is σ = 199930477824. Its totient is φ = 35341152000.

The previous prime is 91763904139. The next prime is 91763904151. The reversal of 91763904140 is 4140936719.

It is a super-2 number, since 2×91763904140² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 91763904091 and 91763904100.

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, 253511 + ... + 497790.

It is an arithmetic number, because the mean of its divisors is an integer number (4165218288).

Almost surely, 2^91763904140 is an apocalyptic number.

It is an amenable number.

91763904140 is an abundant number, since it is smaller than the sum of its proper divisors (108166573684).

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

91763904140 is a wasteful number, since it uses less digits than its factorization.

91763904140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751538 (or 751536 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 91763904140 in words is "ninety-one billion, seven hundred sixty-three million, nine hundred four thousand, one hundred forty".