91295069958 has 48 divisors (see below), whose sum is σ = 208378375920. Its totient is φ = 28807653888.

The previous prime is 91295069909. The next prime is 91295069993. The reversal of 91295069958 is 85996059219.

It is a super-2 number, since 2×91295069958² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 91295069895 and 91295069904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 340666 + ... + 546482.

It is an arithmetic number, because the mean of its divisors is an integer number (4341216165).

Almost surely, 2^91295069958 is an apocalyptic number.

91295069958 is an abundant number, since it is smaller than the sum of its proper divisors (117083305962).

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

91295069958 is a wasteful number, since it uses less digits than its factorization.

91295069958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207141 (or 207138 counting only the distinct ones).

The product of its (nonzero) digits is 15746400, while the sum is 63.

The spelling of 91295069958 in words is "ninety-one billion, two hundred ninety-five million, sixty-nine thousand, nine hundred fifty-eight".