91328490375 has 16 divisors (see below), whose sum is σ = 151970608608. Its totient is φ = 48708528000.

The previous prime is 91328490373. The next prime is 91328490389. The reversal of 91328490375 is 57309482319.

It is not a de Polignac number, because 91328490375 - 2¹ = 91328490373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91328490371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121770946 + ... + 121771695.

It is an arithmetic number, because the mean of its divisors is an integer number (9498163038).

Almost surely, 2^91328490375 is an apocalyptic number.

91328490375 is a deficient number, since it is larger than the sum of its proper divisors (60642118233).

91328490375 is a wasteful number, since it uses less digits than its factorization.

91328490375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243542659 (or 243542649 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 91328490375 in words is "ninety-one billion, three hundred twenty-eight million, four hundred ninety thousand, three hundred seventy-five".