2722457957 has 2 divisors, whose sum is σ = 2722457958. Its totient is φ = 2722457956.

The previous prime is 2722457917. The next prime is 2722457971. The reversal of 2722457957 is 7597542272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1862267716 + 860190241 = 43154^2 + 29329^2 .

It is a cyclic number.

It is not a de Polignac number, because 2722457957 - 2⁸ = 2722457701 is a prime.

It is a super-2 number, since 2×2722457957² = 14823554655265227698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2722457917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1361228978 + 1361228979.

It is an arithmetic number, because the mean of its divisors is an integer number (1361228979).

Almost surely, 2^2722457957 is an apocalyptic number.

It is an amenable number.

2722457957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2722457957 is an equidigital number, since it uses as much as digits as its factorization.

2722457957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2469600, while the sum is 50.

The square root of 2722457957 is about 52177.1785074663. The cubic root of 2722457957 is about 1396.3267580262.

The spelling of 2722457957 in words is "two billion, seven hundred twenty-two million, four hundred fifty-seven thousand, nine hundred fifty-seven".