91457807734 has 16 divisors (see below), whose sum is σ = 138878249328. Its totient is φ = 45165365152.

The previous prime is 91457807687. The next prime is 91457807747. The reversal of 91457807734 is 43770875419.

It is a congruent number.

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, 535464 + ... + 685300.

It is an arithmetic number, because the mean of its divisors is an integer number (8679890583).

Almost surely, 2^91457807734 is an apocalyptic number.

91457807734 is a deficient number, since it is larger than the sum of its proper divisors (47420441594).

91457807734 is a wasteful number, since it uses less digits than its factorization.

91457807734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153599.

The product of its (nonzero) digits is 5927040, while the sum is 55.

The spelling of 91457807734 in words is "ninety-one billion, four hundred fifty-seven million, eight hundred seven thousand, seven hundred thirty-four".