6413630687 has 4 divisors (see below), whose sum is σ = 6413792616. Its totient is φ = 6413468760.

The previous prime is 6413630621. The next prime is 6413630719. The reversal of 6413630687 is 7860363146.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6413630687 - 2¹² = 6413626591 is a prime.

It is a super-2 number, since 2×6413630687² = 82269317178456183938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6412630687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22637 + ... + 115497.

It is an arithmetic number, because the mean of its divisors is an integer number (1603448154).

Almost surely, 2^6413630687 is an apocalyptic number.

6413630687 is a deficient number, since it is larger than the sum of its proper divisors (161929).

6413630687 is an equidigital number, since it uses as much as digits as its factorization.

6413630687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161928.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 6413630687 is about 80085.1464817291. The cubic root of 6413630687 is about 1857.9526830630.

The spelling of 6413630687 in words is "six billion, four hundred thirteen million, six hundred thirty thousand, six hundred eighty-seven".