91611333914 has 16 divisors (see below), whose sum is σ = 139754482368. Its totient is φ = 45029315232.

The previous prime is 91611333911. The next prime is 91611333923. The reversal of 91611333914 is 41933311619.

It is not an unprimeable number, because it can be changed into a prime (91611333911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636659 + ... + 767174.

It is an arithmetic number, because the mean of its divisors is an integer number (8734655148).

Almost surely, 2^91611333914 is an apocalyptic number.

91611333914 is a deficient number, since it is larger than the sum of its proper divisors (48143148454).

91611333914 is a wasteful number, since it uses less digits than its factorization.

91611333914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404389.

The product of its digits is 52488, while the sum is 41.

The spelling of 91611333914 in words is "ninety-one billion, six hundred eleven million, three hundred thirty-three thousand, nine hundred fourteen".