91019675692 has 48 divisors (see below), whose sum is σ = 185536657152. Its totient is φ = 38653433280.

The previous prime is 91019675627. The next prime is 91019675711. The reversal of 91019675692 is 29657691019.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1002303 + ... + 1089334.

It is an arithmetic number, because the mean of its divisors is an integer number (3865347024).

Almost surely, 2^91019675692 is an apocalyptic number.

91019675692 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

91019675692 is an abundant number, since it is smaller than the sum of its proper divisors (94516981460).

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

91019675692 is a wasteful number, since it uses less digits than its factorization.

91019675692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091718 (or 2091716 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 55.

The spelling of 91019675692 in words is "ninety-one billion, nineteen million, six hundred seventy-five thousand, six hundred ninety-two".