621506674322 has 4 divisors (see below), whose sum is σ = 932260011486. Its totient is φ = 310753337160.

The previous prime is 621506674319. The next prime is 621506674339. The reversal of 621506674322 is 223476605126.

621506674322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 389000442601 + 232506231721 = 623699^2 + 482189^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155376668579 + ... + 155376668582.

Almost surely, 2^621506674322 is an apocalyptic number.

621506674322 is a deficient number, since it is larger than the sum of its proper divisors (310753337164).

621506674322 is a wasteful number, since it uses less digits than its factorization.

621506674322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310753337163.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 621506674322 in words is "six hundred twenty-one billion, five hundred six million, six hundred seventy-four thousand, three hundred twenty-two".