91490320941 has 4 divisors (see below), whose sum is σ = 121987094592. Its totient is φ = 60993547292.

The previous prime is 91490320927. The next prime is 91490320967. The reversal of 91490320941 is 14902309419.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14902309419 = 3 ⋅4967436473.

It is a cyclic number.

It is not a de Polignac number, because 91490320941 - 2⁷ = 91490320813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91490320893 and 91490320902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91490320921) 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 3 ways as a sum of consecutive naturals, for example, 15248386821 + ... + 15248386826.

It is an arithmetic number, because the mean of its divisors is an integer number (30496773648).

Almost surely, 2^91490320941 is an apocalyptic number.

It is an amenable number.

91490320941 is a deficient number, since it is larger than the sum of its proper divisors (30496773651).

91490320941 is a wasteful number, since it uses less digits than its factorization.

91490320941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30496773650.

The product of its (nonzero) digits is 69984, while the sum is 42.

The spelling of 91490320941 in words is "ninety-one billion, four hundred ninety million, three hundred twenty thousand, nine hundred forty-one".