91936346494 has 12 divisors (see below), whose sum is σ = 146493729504. Its totient is φ = 43264162784.

The previous prime is 91936346479. The next prime is 91936346521. The reversal of 91936346494 is 49464363919.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79529134 + ... + 79530289.

It is an arithmetic number, because the mean of its divisors is an integer number (12207810792).

Almost surely, 2^91936346494 is an apocalyptic number.

91936346494 is a deficient number, since it is larger than the sum of its proper divisors (54557383010).

91936346494 is a wasteful number, since it uses less digits than its factorization.

91936346494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159059459 (or 159059442 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 58.

The spelling of 91936346494 in words is "ninety-one billion, nine hundred thirty-six million, three hundred forty-six thousand, four hundred ninety-four".