621280804480 has 64 divisors (see below), whose sum is σ = 1697427924480. Its totient is φ = 213010560000.

The previous prime is 621280804429. The next prime is 621280804517. The reversal of 621280804480 is 84408082126.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69334896 + ... + 69343855.

It is an arithmetic number, because the mean of its divisors is an integer number (26522311320).

Almost surely, 2^621280804480 is an apocalyptic number.

It is an amenable number.

621280804480 is an abundant number, since it is smaller than the sum of its proper divisors (1076147120000).

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

621280804480 is a wasteful number, since it uses less digits than its factorization.

621280804480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138678777 (or 138678765 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 43.

The spelling of 621280804480 in words is "six hundred twenty-one billion, two hundred eighty million, eight hundred four thousand, four hundred eighty".