621796630742 has 12 divisors (see below), whose sum is σ = 1084971672180. Its totient is φ = 266484270276.

The previous prime is 621796630717. The next prime is 621796630747. The reversal of 621796630742 is 247036697126.

621796630742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621796630747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3172431692 + ... + 3172431887.

It is an arithmetic number, because the mean of its divisors is an integer number (90414306015).

Almost surely, 2^621796630742 is an apocalyptic number.

621796630742 is a deficient number, since it is larger than the sum of its proper divisors (463175041438).

621796630742 is a wasteful number, since it uses less digits than its factorization.

621796630742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6344863595 (or 6344863588 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 53.

The spelling of 621796630742 in words is "six hundred twenty-one billion, seven hundred ninety-six million, six hundred thirty thousand, seven hundred forty-two".