91334853928 has 32 divisors (see below), whose sum is σ = 172250588160. Its totient is φ = 45401912640.

The previous prime is 91334853919. The next prime is 91334853991. The reversal of 91334853928 is 82935843319.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

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, 1316673 + ... + 1384303.

It is an arithmetic number, because the mean of its divisors is an integer number (5382830880).

Almost surely, 2^91334853928 is an apocalyptic number.

It is an amenable number.

91334853928 is a deficient number, since it is larger than the sum of its proper divisors (80915734232).

91334853928 is a wasteful number, since it uses less digits than its factorization.

91334853928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68617 (or 68613 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 55.

The spelling of 91334853928 in words is "ninety-one billion, three hundred thirty-four million, eight hundred fifty-three thousand, nine hundred twenty-eight".