621243948713 has 16 divisors (see below), whose sum is σ = 673167876480. Its totient is φ = 571032274176.

The previous prime is 621243948697. The next prime is 621243948763. The reversal of 621243948713 is 317849342126.

It is a cyclic number.

It is not a de Polignac number, because 621243948713 - 2⁴ = 621243948697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (621243948763) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6448583 + ... + 6544211.

It is an arithmetic number, because the mean of its divisors is an integer number (42072992280).

Almost surely, 2^621243948713 is an apocalyptic number.

It is an amenable number.

621243948713 is a deficient number, since it is larger than the sum of its proper divisors (51923927767).

621243948713 is a wasteful number, since it uses less digits than its factorization.

621243948713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104576.

The product of its digits is 1741824, while the sum is 50.

The spelling of 621243948713 in words is "six hundred twenty-one billion, two hundred forty-three million, nine hundred forty-eight thousand, seven hundred thirteen".