621133421704 has 32 divisors (see below), whose sum is σ = 1179443664000. Its totient is φ = 306615621312.

The previous prime is 621133421693. The next prime is 621133421723. The reversal of 621133421704 is 407124331126.

621133421704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 621133421704.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16598487 + ... + 16635865.

It is an arithmetic number, because the mean of its divisors is an integer number (36857614500).

Almost surely, 2^621133421704 is an apocalyptic number.

It is an amenable number.

621133421704 is a deficient number, since it is larger than the sum of its proper divisors (558310242296).

621133421704 is a wasteful number, since it uses less digits than its factorization.

621133421704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63757 (or 63753 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 621133421704 in words is "six hundred twenty-one billion, one hundred thirty-three million, four hundred twenty-one thousand, seven hundred four".