857680545419 has 2 divisors, whose sum is σ = 857680545420. Its totient is φ = 857680545418.

The previous prime is 857680545343. The next prime is 857680545443. The reversal of 857680545419 is 914545086758.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 857680545419 - 2²⁸ = 857412109963 is a prime.

It is a super-2 number, since 2×857680545419² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (857680505419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428840272709 + 428840272710.

It is an arithmetic number, because the mean of its divisors is an integer number (428840272710).

Almost surely, 2^857680545419 is an apocalyptic number.

857680545419 is a deficient number, since it is larger than the sum of its proper divisors (1).

857680545419 is an equidigital number, since it uses as much as digits as its factorization.

857680545419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384000, while the sum is 62.

The spelling of 857680545419 in words is "eight hundred fifty-seven billion, six hundred eighty million, five hundred forty-five thousand, four hundred nineteen".