80455127840 has 96 divisors (see below), whose sum is σ = 194328526896. Its totient is φ = 31466106880.

The previous prime is 80455127833. The next prime is 80455127869. The reversal of 80455127840 is 4872155408.

It can be written as a sum of positive squares in 8 ways, for example, as 67806076816 + 12649051024 = 260396^2 + 112468^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80455127791 and 80455127800.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2468450 + ... + 2500830.

Almost surely, 2^80455127840 is an apocalyptic number.

80455127840 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 80455127840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97164263448).

80455127840 is an abundant number, since it is smaller than the sum of its proper divisors (113873399056).

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

80455127840 is a wasteful number, since it uses less digits than its factorization.

80455127840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32742 (or 32734 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 44.

The spelling of 80455127840 in words is "eighty billion, four hundred fifty-five million, one hundred twenty-seven thousand, eight hundred forty".