80068961280 has 352 divisors, whose sum is σ = 319292697600. Its totient is φ = 16637460480.

The previous prime is 80068961263. The next prime is 80068961311. The reversal of 80068961280 is 8216986008.

It is a tau number, because it is divible by the number of its divisors (352).

It is a super-2 number, since 2×80068961280² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1148871 + ... + 1216569.

Almost surely, 2^80068961280 is an apocalyptic number.

80068961280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80068961280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159646348800).

80068961280 is an abundant number, since it is smaller than the sum of its proper divisors (239223736320).

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

80068961280 is a wasteful number, since it uses less digits than its factorization.

80068961280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67745 (or 67727 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 48.

The spelling of 80068961280 in words is "eighty billion, sixty-eight million, nine hundred sixty-one thousand, two hundred eighty".