91516407902 has 8 divisors (see below), whose sum is σ = 139525015512. Its totient is φ = 45008069400.

The previous prime is 91516407889. The next prime is 91516407929. The reversal of 91516407902 is 20970461519.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375067124 + ... + 375067367.

It is an arithmetic number, because the mean of its divisors is an integer number (17440626939).

Almost surely, 2^91516407902 is an apocalyptic number.

91516407902 is a deficient number, since it is larger than the sum of its proper divisors (48008607610).

91516407902 is a wasteful number, since it uses less digits than its factorization.

91516407902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750134554.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 91516407902 in words is "ninety-one billion, five hundred sixteen million, four hundred seven thousand, nine hundred two".