91417091037 has 4 divisors (see below), whose sum is σ = 121889454720. Its totient is φ = 60944727356.

The previous prime is 91417091021. The next prime is 91417091053. The reversal of 91417091037 is 73019071419.

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 an interprime number because it is at equal distance from previous prime (91417091021) and next prime (91417091053).

It is a cyclic number.

It is not a de Polignac number, because 91417091037 - 2⁴ = 91417091021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91417091037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91417091837) 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, 15236181837 + ... + 15236181842.

It is an arithmetic number, because the mean of its divisors is an integer number (30472363680).

Almost surely, 2^91417091037 is an apocalyptic number.

It is an amenable number.

91417091037 is a deficient number, since it is larger than the sum of its proper divisors (30472363683).

91417091037 is a wasteful number, since it uses less digits than its factorization.

91417091037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30472363682.

The product of its (nonzero) digits is 47628, while the sum is 42.

The spelling of 91417091037 in words is "ninety-one billion, four hundred seventeen million, ninety-one thousand, thirty-seven".