80978569422 has 32 divisors (see below), whose sum is σ = 163024735104. Its totient is φ = 26815442400.

The previous prime is 80978569381. The next prime is 80978569429. The reversal of 80978569422 is 22496587908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80978569429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563397 + ... + 692367.

It is an arithmetic number, because the mean of its divisors is an integer number (5094522972).

Almost surely, 2^80978569422 is an apocalyptic number.

80978569422 is an abundant number, since it is smaller than the sum of its proper divisors (82046165682).

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

80978569422 is a wasteful number, since it uses less digits than its factorization.

80978569422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129664.

The product of its (nonzero) digits is 17418240, while the sum is 60.

The spelling of 80978569422 in words is "eighty billion, nine hundred seventy-eight million, five hundred sixty-nine thousand, four hundred twenty-two".