80919553280 has 54 divisors (see below), whose sum is σ = 193851998298. Its totient is φ = 32363750400.

The previous prime is 80919553237. The next prime is 80919553331. The reversal of 80919553280 is 8235591908.

It can be written as a sum of positive squares in only one way, i.e., 64735642624 + 16183910656 = 254432^2 + 127216^2 .

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, 10173305 + ... + 10181255.

Almost surely, 2^80919553280 is an apocalyptic number.

80919553280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80919553280 is an abundant number, since it is smaller than the sum of its proper divisors (112932445018).

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

80919553280 is an frugal number, since it uses more digits than its factorization.

80919553280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15923 (or 7958 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 50.

The spelling of 80919553280 in words is "eighty billion, nine hundred nineteen million, five hundred fifty-three thousand, two hundred eighty".