5157354721 has 4 divisors (see below), whose sum is σ = 5164449472. Its totient is φ = 5150259972.

The previous prime is 5157354679. The next prime is 5157354733. The reversal of 5157354721 is 1274537515.

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 5157354721 - 2⁷ = 5157354593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5157354221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3546285 + ... + 3547738.

It is an arithmetic number, because the mean of its divisors is an integer number (1291112368).

Almost surely, 2^5157354721 is an apocalyptic number.

It is an amenable number.

5157354721 is a deficient number, since it is larger than the sum of its proper divisors (7094751).

5157354721 is an equidigital number, since it uses as much as digits as its factorization.

5157354721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7094750.

The product of its digits is 147000, while the sum is 40.

The square root of 5157354721 is about 71814.7249594399. The cubic root of 5157354721 is about 1727.7291779194.

The spelling of 5157354721 in words is "five billion, one hundred fifty-seven million, three hundred fifty-four thousand, seven hundred twenty-one".