2457668797 has 4 divisors (see below), whose sum is σ = 2524092316. Its totient is φ = 2391245280.

The previous prime is 2457668789. The next prime is 2457668839. The reversal of 2457668797 is 7978667542.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1045487556 + 1412181241 = 32334^2 + 37579^2 .

It is a cyclic number.

It is not a de Polignac number, because 2457668797 - 2³ = 2457668789 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 (2457668897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33211704 + ... + 33211777.

It is an arithmetic number, because the mean of its divisors is an integer number (631023079).

Almost surely, 2^2457668797 is an apocalyptic number.

It is an amenable number.

2457668797 is a deficient number, since it is larger than the sum of its proper divisors (66423519).

2457668797 is an equidigital number, since it uses as much as digits as its factorization.

2457668797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66423518.

The product of its digits is 35562240, while the sum is 61.

The square root of 2457668797 is about 49574.8807058575. The cubic root of 2457668797 is about 1349.5048567345.

The spelling of 2457668797 in words is "two billion, four hundred fifty-seven million, six hundred sixty-eight thousand, seven hundred ninety-seven".