91351096072 has 32 divisors (see below), whose sum is σ = 174858361920. Its totient is φ = 44728799040.

The previous prime is 91351096049. The next prime is 91351096097. The reversal of 91351096072 is 27069015319.

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, 301548 + ... + 523099.

It is an arithmetic number, because the mean of its divisors is an integer number (5464323810).

Almost surely, 2^91351096072 is an apocalyptic number.

It is an amenable number.

91351096072 is a deficient number, since it is larger than the sum of its proper divisors (83507265848).

91351096072 is a wasteful number, since it uses less digits than its factorization.

91351096072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824941 (or 824937 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 43.

The spelling of 91351096072 in words is "ninety-one billion, three hundred fifty-one million, ninety-six thousand, seventy-two".