5115844621 has 4 divisors (see below), whose sum is σ = 5338272672. Its totient is φ = 4893416572.

The previous prime is 5115844609. The next prime is 5115844681. The reversal of 5115844621 is 1264485115.

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 5115844621 - 2¹⁹ = 5115320333 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 (5115844681) 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, 111213991 + ... + 111214036.

It is an arithmetic number, because the mean of its divisors is an integer number (1334568168).

Almost surely, 2^5115844621 is an apocalyptic number.

It is an amenable number.

5115844621 is a deficient number, since it is larger than the sum of its proper divisors (222428051).

5115844621 is a wasteful number, since it uses less digits than its factorization.

5115844621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222428050.

The product of its digits is 38400, while the sum is 37.

The square root of 5115844621 is about 71525.1327926065. The cubic root of 5115844621 is about 1723.0813501661.

The spelling of 5115844621 in words is "five billion, one hundred fifteen million, eight hundred forty-four thousand, six hundred twenty-one".