501604425246621 has 16 divisors (see below), whose sum is σ = 693349689240000. Its totient is φ = 322180439591808.

The previous prime is 501604425246619. The next prime is 501604425246667. The reversal of 501604425246621 is 126642524406105.

It is not a de Polignac number, because 501604425246621 - 2¹ = 501604425246619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501604425246671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6172944496 + ... + 6173025753.

It is an arithmetic number, because the mean of its divisors is an integer number (43334355577500).

Almost surely, 2^{501604425246621} is an apocalyptic number.

It is an amenable number.

501604425246621 is a deficient number, since it is larger than the sum of its proper divisors (191745263993379).

501604425246621 is a wasteful number, since it uses less digits than its factorization.

501604425246621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12345970748.

The product of its (nonzero) digits is 2764800, while the sum is 48.

The spelling of 501604425246621 in words is "five hundred one trillion, six hundred four billion, four hundred twenty-five million, two hundred forty-six thousand, six hundred twenty-one".