621643314147 has 8 divisors (see below), whose sum is σ = 831807425040. Its totient is φ = 412954039680.

The previous prime is 621643314113. The next prime is 621643314167. The reversal of 621643314147 is 741413346126.

621643314147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 621643314147 - 2¹¹ = 621643312099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 621643314099 and 621643314108.

It is not an unprimeable number, because it can be changed into a prime (621643314167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368708122 + ... + 368709807.

It is an arithmetic number, because the mean of its divisors is an integer number (103975928130).

Almost surely, 2^621643314147 is an apocalyptic number.

621643314147 is a deficient number, since it is larger than the sum of its proper divisors (210164110893).

621643314147 is a wasteful number, since it uses less digits than its factorization.

621643314147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737418213.

The product of its digits is 290304, while the sum is 42.

The spelling of 621643314147 in words is "six hundred twenty-one billion, six hundred forty-three million, three hundred fourteen thousand, one hundred forty-seven".