80621452800 has 720 divisors, whose sum is σ = 349195141152. Its totient is φ = 17340825600.

The previous prime is 80621452789. The next prime is 80621452829. The reversal of 80621452800 is 825412608.

80621452800 is a `hidden beast` number, since 8 + 0 + 621 + 4 + 5 + 28 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 13705860 + ... + 13711740.

Almost surely, 2^80621452800 is an apocalyptic number.

80621452800 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 80621452800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174597570576).

80621452800 is an abundant number, since it is smaller than the sum of its proper divisors (268573688352).

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

80621452800 is a wasteful number, since it uses less digits than its factorization.

80621452800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5939 (or 5915 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 80621452800 in words is "eighty billion, six hundred twenty-one million, four hundred fifty-two thousand, eight hundred".