80895749971 has 2 divisors, whose sum is σ = 80895749972. Its totient is φ = 80895749970.

The previous prime is 80895749947. The next prime is 80895750041. The reversal of 80895749971 is 17994759808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80895749971 - 2⁵ = 80895749939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80895749897 and 80895749906.

It is not a weakly prime, because it can be changed into another prime (80895749471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40447874985 + 40447874986.

It is an arithmetic number, because the mean of its divisors is an integer number (40447874986).

Almost surely, 2^80895749971 is an apocalyptic number.

80895749971 is a deficient number, since it is larger than the sum of its proper divisors (1).

80895749971 is an equidigital number, since it uses as much as digits as its factorization.

80895749971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45722880, while the sum is 67.

The spelling of 80895749971 in words is "eighty billion, eight hundred ninety-five million, seven hundred forty-nine thousand, nine hundred seventy-one".