91919090914 has 8 divisors (see below), whose sum is σ = 157575584448. Its totient is φ = 39393896100.

The previous prime is 91919090903. The next prime is 91919090951. The reversal of 91919090914 is 41909091919.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3282824662 + ... + 3282824689.

It is an arithmetic number, because the mean of its divisors is an integer number (19696948056).

Almost surely, 2^91919090914 is an apocalyptic number.

91919090914 is a deficient number, since it is larger than the sum of its proper divisors (65656493534).

91919090914 is a wasteful number, since it uses less digits than its factorization.

91919090914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6565649360.

The product of its (nonzero) digits is 236196, while the sum is 52.

The spelling of 91919090914 in words is "ninety-one billion, nine hundred nineteen million, ninety thousand, nine hundred fourteen".