5123257791 has 8 divisors (see below), whose sum is σ = 6832166064. Its totient is φ = 3414927360.

The previous prime is 5123257781. The next prime is 5123257817. The reversal of 5123257791 is 1977523215.

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

It is not a de Polignac number, because 5123257791 - 2⁵ = 5123257759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5123257721) 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, 123330 + ... + 159551.

It is an arithmetic number, because the mean of its divisors is an integer number (854020758).

Almost surely, 2^5123257791 is an apocalyptic number.

5123257791 is a deficient number, since it is larger than the sum of its proper divisors (1708908273).

5123257791 is a wasteful number, since it uses less digits than its factorization.

5123257791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288921.

The product of its digits is 132300, while the sum is 42.

The square root of 5123257791 is about 71576.9361666172. The cubic root of 5123257791 is about 1723.9132317043.

The spelling of 5123257791 in words is "five billion, one hundred twenty-three million, two hundred fifty-seven thousand, seven hundred ninety-one".