80887791856961 has 8 divisors (see below), whose sum is σ = 83153458709664. Its totient is φ = 78636067570080.

The previous prime is 80887791856951. The next prime is 80887791856969. The reversal of 80887791856961 is 16965819778808.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80887791856961 - 2³⁴ = 80870611987777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80887791856961.

It is not an unprimeable number, because it can be changed into a prime (80887791856969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3485629691 + ... + 3485652896.

It is an arithmetic number, because the mean of its divisors is an integer number (10394182338708).

Almost surely, 2^{80887791856961} is an apocalyptic number.

It is an amenable number.

80887791856961 is a deficient number, since it is larger than the sum of its proper divisors (2265666852703).

80887791856961 is a wasteful number, since it uses less digits than its factorization.

80887791856961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6971282911.

The product of its (nonzero) digits is 2926264320, while the sum is 83.

The spelling of 80887791856961 in words is "eighty trillion, eight hundred eighty-seven billion, seven hundred ninety-one million, eight hundred fifty-six thousand, nine hundred sixty-one".