91948755737 has 8 divisors (see below), whose sum is σ = 92627108616. Its totient is φ = 91270507392.

The previous prime is 91948755697. The next prime is 91948755761. The reversal of 91948755737 is 73755784919.

It can be written as a sum of positive squares in 4 ways, for example, as 1265865241 + 90682890496 = 35579^2 + 301136^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91948755737 - 2¹⁶ = 91948690201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91948755637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3163523 + ... + 3192455.

It is an arithmetic number, because the mean of its divisors is an integer number (11578388577).

Almost surely, 2^91948755737 is an apocalyptic number.

It is an amenable number.

91948755737 is a deficient number, since it is larger than the sum of its proper divisors (678352879).

91948755737 is a wasteful number, since it uses less digits than its factorization.

91948755737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52267.

The product of its digits is 66679200, while the sum is 65.

The spelling of 91948755737 in words is "ninety-one billion, nine hundred forty-eight million, seven hundred fifty-five thousand, seven hundred thirty-seven".