80140777920000 has 5400 divisors, whose sum is σ = 376461042998040. Its totient is φ = 16930529280000.

The previous prime is 80140777919999. The next prime is 80140777920061. The reversal of 80140777920000 is 2977704108.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (5400).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 539 ways as a sum of consecutive naturals, for example, 1954653119980 + ... + 1954653120020.

Almost surely, 2^{80140777920000} is an apocalyptic number.

80140777920000 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 80140777920000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188230521499020).

80140777920000 is an abundant number, since it is smaller than the sum of its proper divisors (296320265078040).

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

80140777920000 is an frugal number, since it uses more digits than its factorization.

80140777920000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The spelling of 80140777920000 in words is "eighty trillion, one hundred forty billion, seven hundred seventy-seven million, nine hundred twenty thousand".