5215751791 has 8 divisors (see below), whose sum is σ = 5471023104. Its totient is φ = 4962855480.

The previous prime is 5215751753. The next prime is 5215751809. The reversal of 5215751791 is 1971575125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5215751791 - 2⁷ = 5215751663 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 (5215751711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589251 + ... + 598036.

It is an arithmetic number, because the mean of its divisors is an integer number (683877888).

Almost surely, 2^5215751791 is an apocalyptic number.

5215751791 is a deficient number, since it is larger than the sum of its proper divisors (255271313).

5215751791 is a wasteful number, since it uses less digits than its factorization.

5215751791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187501.

The product of its digits is 110250, while the sum is 43.

The square root of 5215751791 is about 72220.1619424936. The cubic root of 5215751791 is about 1734.2257828483.

The spelling of 5215751791 in words is "five billion, two hundred fifteen million, seven hundred fifty-one thousand, seven hundred ninety-one".