80039742689280 has 832 divisors, whose sum is σ = 290119201908480. Its totient is φ = 18670524825600.

The previous prime is 80039742689209. The next prime is 80039742689297. The reversal of 80039742689280 is 8298624793008.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2022769336 + ... + 2022808904.

Almost surely, 2^{80039742689280} is an apocalyptic number.

80039742689280 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 80039742689280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145059600954240).

80039742689280 is an abundant number, since it is smaller than the sum of its proper divisors (210079459219200).

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

80039742689280 is a wasteful number, since it uses less digits than its factorization.

80039742689280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39726 (or 39704 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 66.

The spelling of 80039742689280 in words is "eighty trillion, thirty-nine billion, seven hundred forty-two million, six hundred eighty-nine thousand, two hundred eighty".