80722270972 has 18 divisors (see below), whose sum is σ = 161447548808. Its totient is φ = 34594614672.

The previous prime is 80722270961. The next prime is 80722270997. The reversal of 80722270972 is 27907222708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1476558 + ... + 1530250.

Almost surely, 2^80722270972 is an apocalyptic number.

It is an amenable number.

80722270972 is an abundant number, since it is smaller than the sum of its proper divisors (80725277836).

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

80722270972 is an frugal number, since it uses more digits than its factorization.

80722270972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107397 (or 53702 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 80722270972 in words is "eighty billion, seven hundred twenty-two million, two hundred seventy thousand, nine hundred seventy-two".