91799700441 has 4 divisors (see below), whose sum is σ = 122399600592. Its totient is φ = 61199800292.

The previous prime is 91799700413. The next prime is 91799700451. The reversal of 91799700441 is 14400799719.

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: 14400799719 = 3 ⋅4800266573.

It is a cyclic number.

It is not a de Polignac number, because 91799700441 - 2²² = 91795506137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91799700451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15299950071 + ... + 15299950076.

It is an arithmetic number, because the mean of its divisors is an integer number (30599900148).

Almost surely, 2^91799700441 is an apocalyptic number.

It is an amenable number.

91799700441 is a deficient number, since it is larger than the sum of its proper divisors (30599900151).

91799700441 is a wasteful number, since it uses less digits than its factorization.

91799700441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30599900150.

The product of its (nonzero) digits is 571536, while the sum is 51.

The spelling of 91799700441 in words is "ninety-one billion, seven hundred ninety-nine million, seven hundred thousand, four hundred forty-one".