80968680975897 has 96 divisors (see below), whose sum is σ = 139418907264000. Its totient is φ = 44632804809600.

The previous prime is 80968680975863. The next prime is 80968680975907. The reversal of 80968680975897 is 79857908686908.

It is a happy number.

It is not a de Polignac number, because 80968680975897 - 2⁷ = 80968680975769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80968680975397) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 154988754 + ... + 155510292.

It is an arithmetic number, because the mean of its divisors is an integer number (1452280284000).

Almost surely, 2^{80968680975897} is an apocalyptic number.

It is an amenable number.

80968680975897 is a deficient number, since it is larger than the sum of its proper divisors (58450226288103).

80968680975897 is a wasteful number, since it uses less digits than its factorization.

80968680975897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523339 (or 523336 counting only the distinct ones).

The product of its (nonzero) digits is 26336378880, while the sum is 90.

The spelling of 80968680975897 in words is "eighty trillion, nine hundred sixty-eight billion, six hundred eighty million, nine hundred seventy-five thousand, eight hundred ninety-seven".