91398069125 has 64 divisors (see below), whose sum is σ = 125624169216. Its totient is φ = 65839104000.

The previous prime is 91398069101. The next prime is 91398069127. The reversal of 91398069125 is 52196089319.

It is a happy number.

It is not a de Polignac number, because 91398069125 - 2⁸ = 91398068869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91398069127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 75100517 + ... + 75101733.

It is an arithmetic number, because the mean of its divisors is an integer number (1962877644).

Almost surely, 2^91398069125 is an apocalyptic number.

It is an amenable number.

91398069125 is a deficient number, since it is larger than the sum of its proper divisors (34226100091).

91398069125 is a wasteful number, since it uses less digits than its factorization.

91398069125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719 (or 1709 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 53.

The spelling of 91398069125 in words is "ninety-one billion, three hundred ninety-eight million, sixty-nine thousand, one hundred twenty-five".