91170354963 has 16 divisors (see below), whose sum is σ = 123746177952. Its totient is φ = 59690496000.

The previous prime is 91170354949. The next prime is 91170355007. The reversal of 91170354963 is 36945307119.

It is not a de Polignac number, because 91170354963 - 2²¹ = 91168257811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91170354943) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 271308 + ... + 505913.

It is an arithmetic number, because the mean of its divisors is an integer number (7734136122).

Almost surely, 2^91170354963 is an apocalyptic number.

91170354963 is a deficient number, since it is larger than the sum of its proper divisors (32575822989).

91170354963 is a wasteful number, since it uses less digits than its factorization.

91170354963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777926.

The product of its (nonzero) digits is 612360, while the sum is 48.

The spelling of 91170354963 in words is "ninety-one billion, one hundred seventy million, three hundred fifty-four thousand, nine hundred sixty-three".