91107383069 has 4 divisors (see below), whose sum is σ = 91134836640. Its totient is φ = 91079929500.

The previous prime is 91107383033. The next prime is 91107383083. The reversal of 91107383069 is 96038370119.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91107383069 is a prime.

It is a super-2 number, since 2×91107383069² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91107389069) 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, 13721807 + ... + 13728444.

It is an arithmetic number, because the mean of its divisors is an integer number (22783709160).

Almost surely, 2^91107383069 is an apocalyptic number.

It is an amenable number.

91107383069 is a deficient number, since it is larger than the sum of its proper divisors (27453571).

91107383069 is a wasteful number, since it uses less digits than its factorization.

91107383069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27453570.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 91107383069 in words is "ninety-one billion, one hundred seven million, three hundred eighty-three thousand, sixty-nine".