5120862391 has 2 divisors, whose sum is σ = 5120862392. Its totient is φ = 5120862390.

The previous prime is 5120862359. The next prime is 5120862407. The reversal of 5120862391 is 1932680215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5120862391 - 2⁵ = 5120862359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5120862391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5120862191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560431195 + 2560431196.

It is an arithmetic number, because the mean of its divisors is an integer number (2560431196).

Almost surely, 2^5120862391 is an apocalyptic number.

5120862391 is a deficient number, since it is larger than the sum of its proper divisors (1).

5120862391 is an equidigital number, since it uses as much as digits as its factorization.

5120862391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 5120862391 is about 71560.2011665702. The cubic root of 5120862391 is about 1723.6445156078.

The spelling of 5120862391 in words is "five billion, one hundred twenty million, eight hundred sixty-two thousand, three hundred ninety-one".