831578680043 has 2 divisors, whose sum is σ = 831578680044. Its totient is φ = 831578680042.

The previous prime is 831578680039. The next prime is 831578680189. The reversal of 831578680043 is 340086875138.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 831578680043 - 2² = 831578680039 is a prime.

It is a super-2 number, since 2×831578680043² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (831578680343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415789340021 + 415789340022.

It is an arithmetic number, because the mean of its divisors is an integer number (415789340022).

Almost surely, 2^831578680043 is an apocalyptic number.

831578680043 is a deficient number, since it is larger than the sum of its proper divisors (1).

831578680043 is an equidigital number, since it uses as much as digits as its factorization.

831578680043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 831578680043 in words is "eight hundred thirty-one billion, five hundred seventy-eight million, six hundred eighty thousand, forty-three".