5242986857 has 2 divisors, whose sum is σ = 5242986858. Its totient is φ = 5242986856.

The previous prime is 5242986851. The next prime is 5242986923. The reversal of 5242986857 is 7586892425.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5214428521 + 28558336 = 72211^2 + 5344^2 .

It is a cyclic number.

It is not a de Polignac number, because 5242986857 - 2⁴ = 5242986841 is a prime.

It is a super-2 number, since 2×5242986857² = 54977822365349476898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5242986851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2621493428 + 2621493429.

It is an arithmetic number, because the mean of its divisors is an integer number (2621493429).

Almost surely, 2^5242986857 is an apocalyptic number.

It is an amenable number.

5242986857 is a deficient number, since it is larger than the sum of its proper divisors (1).

5242986857 is an equidigital number, since it uses as much as digits as its factorization.

5242986857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9676800, while the sum is 56.

The square root of 5242986857 is about 72408.4722736228. The cubic root of 5242986857 is about 1737.2390768893.

The spelling of 5242986857 in words is "five billion, two hundred forty-two million, nine hundred eighty-six thousand, eight hundred fifty-seven".