80426781120 has 1008 divisors, whose sum is σ = 326859960960. Its totient is φ = 16658030592.

The previous prime is 80426781103. The next prime is 80426781131. The reversal of 80426781120 is 2118762408.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 751652107 + ... + 751652213.

Almost surely, 2^80426781120 is an apocalyptic number.

80426781120 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 80426781120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163429980480).

80426781120 is an abundant number, since it is smaller than the sum of its proper divisors (246433179840).

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

80426781120 is a wasteful number, since it uses less digits than its factorization.

80426781120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 80426781120 in words is "eighty billion, four hundred twenty-six million, seven hundred eighty-one thousand, one hundred twenty".