80928921280 has 56 divisors (see below), whose sum is σ = 195351940512. Its totient is φ = 31928113152.

The previous prime is 80928921259. The next prime is 80928921301. The reversal of 80928921280 is 8212982908.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80928921259) and next prime (80928921301).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1708852 + ... + 1755571.

Almost surely, 2^80928921280 is an apocalyptic number.

80928921280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80928921280 is an abundant number, since it is smaller than the sum of its proper divisors (114423019232).

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

80928921280 is a wasteful number, since it uses less digits than its factorization.

80928921280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464513 (or 3464503 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 49.

The spelling of 80928921280 in words is "eighty billion, nine hundred twenty-eight million, nine hundred twenty-one thousand, two hundred eighty".