91227414079 has 4 divisors (see below), whose sum is σ = 94170233920. Its totient is φ = 88284594240.

The previous prime is 91227414073. The next prime is 91227414097. The reversal of 91227414079 is 97041472219.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97041472219 = 99667 ⋅973657.

It is a cyclic number.

It is not a de Polignac number, because 91227414079 - 2¹³ = 91227405887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91227414073) 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, 1471409874 + ... + 1471409935.

It is an arithmetic number, because the mean of its divisors is an integer number (23542558480).

Almost surely, 2^91227414079 is an apocalyptic number.

91227414079 is a deficient number, since it is larger than the sum of its proper divisors (2942819841).

91227414079 is a wasteful number, since it uses less digits than its factorization.

91227414079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942819840.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 91227414079 in words is "ninety-one billion, two hundred twenty-seven million, four hundred fourteen thousand, seventy-nine".