6314661621 has 12 divisors (see below), whose sum is σ = 9123805548. Its totient is φ = 4208561664.

The previous prime is 6314661607. The next prime is 6314661631. The reversal of 6314661621 is 1261664136.

It is a happy number.

6314661621 is a `hidden beast` number, since 6 + 3 + 14 + 6 + 616 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2582062596 + 3732599025 = 50814^2 + 61095^2 .

It is not a de Polignac number, because 6314661621 - 2⁵ = 6314661589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6314661631) 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 11 ways as a sum of consecutive naturals, for example, 67500 + ... + 131093.

It is an arithmetic number, because the mean of its divisors is an integer number (760317129).

Almost surely, 2^6314661621 is an apocalyptic number.

It is an amenable number.

6314661621 is a deficient number, since it is larger than the sum of its proper divisors (2809143927).

6314661621 is a wasteful number, since it uses less digits than its factorization.

6314661621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202132 (or 202129 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 6314661621 is about 79464.8451895554. The cubic root of 6314661621 is about 1848.3463792803.

The spelling of 6314661621 in words is "six billion, three hundred fourteen million, six hundred sixty-one thousand, six hundred twenty-one".