5100706655621 has 4 divisors (see below), whose sum is σ = 5100716646144. Its totient is φ = 5100696665100.

The previous prime is 5100706655599. The next prime is 5100706655729. The reversal of 5100706655621 is 1265566070015.

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 5100706655621 - 2²⁶ = 5100639546757 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 (5100706652621) 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, 4185695 + ... + 5265116.

It is an arithmetic number, because the mean of its divisors is an integer number (1275179161536).

Almost surely, 2^{5100706655621} is an apocalyptic number.

It is an amenable number.

5100706655621 is a deficient number, since it is larger than the sum of its proper divisors (9990523).

5100706655621 is an equidigital number, since it uses as much as digits as its factorization.

5100706655621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9990522.

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 5100706655621 in words is "five trillion, one hundred billion, seven hundred six million, six hundred fifty-five thousand, six hundred twenty-one".