91683434403 has 12 divisors (see below), whose sum is σ = 144470866488. Its totient is φ = 55565717760.

The previous prime is 91683434369. The next prime is 91683434419. The reversal of 91683434403 is 30443438619.

91683434403 is a `hidden beast` number, since 9 + 168 + 3 + 43 + 440 + 3 = 666.

It is not a de Polignac number, because 91683434403 - 2⁸ = 91683434147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91683434443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 463047550 + ... + 463047747.

It is an arithmetic number, because the mean of its divisors is an integer number (12039238874).

Almost surely, 2^91683434403 is an apocalyptic number.

91683434403 is a deficient number, since it is larger than the sum of its proper divisors (52787432085).

91683434403 is a wasteful number, since it uses less digits than its factorization.

91683434403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926095314 (or 926095311 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 91683434403 in words is "ninety-one billion, six hundred eighty-three million, four hundred thirty-four thousand, four hundred three".