8057856407 has 2 divisors, whose sum is σ = 8057856408. Its totient is φ = 8057856406.

The previous prime is 8057856349. The next prime is 8057856437. The reversal of 8057856407 is 7046587508.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8057856407 - 2²⁶ = 7990747543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8057856437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4028928203 + 4028928204.

It is an arithmetic number, because the mean of its divisors is an integer number (4028928204).

Almost surely, 2^8057856407 is an apocalyptic number.

8057856407 is a deficient number, since it is larger than the sum of its proper divisors (1).

8057856407 is an equidigital number, since it uses as much as digits as its factorization.

8057856407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1881600, while the sum is 50.

The square root of 8057856407 is about 89765.5635920591. The cubic root of 8057856407 is about 2004.8097909331.

The spelling of 8057856407 in words is "eight billion, fifty-seven million, eight hundred fifty-six thousand, four hundred seven".