816976816883 has 2 divisors, whose sum is σ = 816976816884. Its totient is φ = 816976816882.

The previous prime is 816976816879. The next prime is 816976816891. The reversal of 816976816883 is 388618679618.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 816976816883 - 2² = 816976816879 is a prime.

It is a super-2 number, since 2×816976816883² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (816976816823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408488408441 + 408488408442.

It is an arithmetic number, because the mean of its divisors is an integer number (408488408442).

Almost surely, 2^816976816883 is an apocalyptic number.

816976816883 is a deficient number, since it is larger than the sum of its proper divisors (1).

816976816883 is an equidigital number, since it uses as much as digits as its factorization.

816976816883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 167215104, while the sum is 71.

The spelling of 816976816883 in words is "eight hundred sixteen billion, nine hundred seventy-six million, eight hundred sixteen thousand, eight hundred eighty-three".