2571246863 has 2 divisors, whose sum is σ = 2571246864. Its totient is φ = 2571246862.

The previous prime is 2571246859. The next prime is 2571246893. The reversal of 2571246863 is 3686421752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2571246863 - 2² = 2571246859 is a prime.

It is a super-2 number, since 2×2571246863² = 13222620860974681538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2571246893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1285623431 + 1285623432.

It is an arithmetic number, because the mean of its divisors is an integer number (1285623432).

Almost surely, 2^2571246863 is an apocalyptic number.

2571246863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2571246863 is an equidigital number, since it uses as much as digits as its factorization.

2571246863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 44.

The square root of 2571246863 is about 50707.4635827903. The cubic root of 2571246863 is about 1369.9811500417.

The spelling of 2571246863 in words is "two billion, five hundred seventy-one million, two hundred forty-six thousand, eight hundred sixty-three".