91284986434 has 16 divisors (see below), whose sum is σ = 137851390080. Its totient is φ = 45334598400.

The previous prime is 91284986399. The next prime is 91284986461. The reversal of 91284986434 is 43468948219.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3526242 + ... + 3552034.

It is an arithmetic number, because the mean of its divisors is an integer number (8615711880).

Almost surely, 2^91284986434 is an apocalyptic number.

91284986434 is a deficient number, since it is larger than the sum of its proper divisors (46566403646).

91284986434 is a wasteful number, since it uses less digits than its factorization.

91284986434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37665.

The product of its digits is 11943936, while the sum is 58.

The spelling of 91284986434 in words is "ninety-one billion, two hundred eighty-four million, nine hundred eighty-six thousand, four hundred thirty-four".