91419090955 has 16 divisors (see below), whose sum is σ = 114481797120. Its totient is φ = 69949858528.

The previous prime is 91419090947. The next prime is 91419090967. The reversal of 91419090955 is 55909091419.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 91419090955 - 2³ = 91419090947 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1924986 + ... + 1971904.

It is an arithmetic number, because the mean of its divisors is an integer number (7155112320).

Almost surely, 2^91419090955 is an apocalyptic number.

91419090955 is a deficient number, since it is larger than the sum of its proper divisors (23062706165).

91419090955 is a wasteful number, since it uses less digits than its factorization.

91419090955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63890.

The product of its (nonzero) digits is 656100, while the sum is 52.

The spelling of 91419090955 in words is "ninety-one billion, four hundred nineteen million, ninety thousand, nine hundred fifty-five".