91395980054 has 8 divisors (see below), whose sum is σ = 138094656408. Its totient is φ = 45364427920.

The previous prime is 91395979973. The next prime is 91395980063. The reversal of 91395980054 is 45008959319.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 91395979978 and 91395980005.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 166780712 + ... + 166781259.

It is an arithmetic number, because the mean of its divisors is an integer number (17261832051).

Almost surely, 2^91395980054 is an apocalyptic number.

91395980054 is a deficient number, since it is larger than the sum of its proper divisors (46698676354).

91395980054 is a wasteful number, since it uses less digits than its factorization.

91395980054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333562110.

The product of its (nonzero) digits is 1749600, while the sum is 53.

The spelling of 91395980054 in words is "ninety-one billion, three hundred ninety-five million, nine hundred eighty thousand, fifty-four".