91949768435 has 8 divisors (see below), whose sum is σ = 126102539616. Its totient is φ = 63051269760.

The previous prime is 91949768389. The next prime is 91949768507. The reversal of 91949768435 is 53486794919.

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

It is not a de Polignac number, because 91949768435 - 2⁸ = 91949768179 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1313568086 + ... + 1313568155.

It is an arithmetic number, because the mean of its divisors is an integer number (15762817452).

Almost surely, 2^91949768435 is an apocalyptic number.

91949768435 is a deficient number, since it is larger than the sum of its proper divisors (34152771181).

91949768435 is a wasteful number, since it uses less digits than its factorization.

91949768435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627136253.

The product of its digits is 58786560, while the sum is 65.

The spelling of 91949768435 in words is "ninety-one billion, nine hundred forty-nine million, seven hundred sixty-eight thousand, four hundred thirty-five".