91675420955 has 16 divisors (see below), whose sum is σ = 111851000064. Its totient is φ = 72117233760.

The previous prime is 91675420951. The next prime is 91675420961. The reversal of 91675420955 is 55902457619.

It is not a de Polignac number, because 91675420955 - 2² = 91675420951 is a prime.

It is a super-2 number, since 2×91675420955² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91675420897 and 91675420906.

It is not an unprimeable number, because it can be changed into a prime (91675420951) 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, 54431 + ... + 431640.

It is an arithmetic number, because the mean of its divisors is an integer number (6990687504).

Almost surely, 2^91675420955 is an apocalyptic number.

91675420955 is a deficient number, since it is larger than the sum of its proper divisors (20175579109).

91675420955 is a wasteful number, since it uses less digits than its factorization.

91675420955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486706.

The product of its (nonzero) digits is 3402000, while the sum is 53.

The spelling of 91675420955 in words is "ninety-one billion, six hundred seventy-five million, four hundred twenty thousand, nine hundred fifty-five".