80143355868 has 24 divisors (see below), whose sum is σ = 187113658368. Its totient is φ = 26698381296.

The previous prime is 80143355857. The next prime is 80143355869. The reversal of 80143355868 is 86855334108.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 80143355868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80143355869) 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, 1988046 + ... + 2027957.

It is an arithmetic number, because the mean of its divisors is an integer number (7796402432).

Almost surely, 2^80143355868 is an apocalyptic number.

It is an amenable number.

80143355868 is an abundant number, since it is smaller than the sum of its proper divisors (106970302500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80143355868 is a wasteful number, since it uses less digits than its factorization.

80143355868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4017673 (or 4017671 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 80143355868 in words is "eighty billion, one hundred forty-three million, three hundred fifty-five thousand, eight hundred sixty-eight".