80643322842881 has 8 divisors (see below), whose sum is σ = 82658856084000. Its totient is φ = 78630104979360.

The previous prime is 80643322842871. The next prime is 80643322842899. The reversal of 80643322842881 is 18824822334608.

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 80643322842881 - 2²⁶ = 80643255734017 is a prime.

It is a super-2 number, since 2×80643322842881² (a number of 29 digits) contains 22 as substring.

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 80643322842881.

It is not an unprimeable number, because it can be changed into a prime (80643322842871) 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, 578773871 + ... + 578913188.

It is an arithmetic number, because the mean of its divisors is an integer number (10332357010500).

Almost surely, 2^{80643322842881} is an apocalyptic number.

It is an amenable number.

80643322842881 is a deficient number, since it is larger than the sum of its proper divisors (2015533241119).

80643322842881 is a wasteful number, since it uses less digits than its factorization.

80643322842881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157688799.

The product of its (nonzero) digits is 28311552, while the sum is 59.

The spelling of 80643322842881 in words is "eighty trillion, six hundred forty-three billion, three hundred twenty-two million, eight hundred forty-two thousand, eight hundred eighty-one".