5091913645501 has 4 divisors (see below), whose sum is σ = 5210330241952. Its totient is φ = 4973497049052.

The previous prime is 5091913645477. The next prime is 5091913645531. The reversal of 5091913645501 is 1055463191905.

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 not a de Polignac number, because 5091913645501 - 2³³ = 5083323710909 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 (5091913645531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59208298161 + ... + 59208298246.

It is an arithmetic number, because the mean of its divisors is an integer number (1302582560488).

Almost surely, 2^{5091913645501} is an apocalyptic number.

It is an amenable number.

5091913645501 is a deficient number, since it is larger than the sum of its proper divisors (118416596451).

5091913645501 is a wasteful number, since it uses less digits than its factorization.

5091913645501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118416596450.

The product of its (nonzero) digits is 729000, while the sum is 49.

The spelling of 5091913645501 in words is "five trillion, ninety-one billion, nine hundred thirteen million, six hundred forty-five thousand, five hundred one".