80899321272 has 384 divisors, whose sum is σ = 265446720000. Its totient is φ = 20086133760.

The previous prime is 80899321259. The next prime is 80899321277. The reversal of 80899321272 is 27212399808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80899321277) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 64256179 + ... + 64257437.

It is an arithmetic number, because the mean of its divisors is an integer number (691267500).

Almost surely, 2^80899321272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80899321272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132723360000).

80899321272 is an abundant number, since it is smaller than the sum of its proper divisors (184547398728).

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

80899321272 is a wasteful number, since it uses less digits than its factorization.

80899321272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435 (or 1420 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 80899321272 in words is "eighty billion, eight hundred ninety-nine million, three hundred twenty-one thousand, two hundred seventy-two".