6412663491 has 24 divisors (see below), whose sum is σ = 9361563120. Its totient is φ = 3881473920.

The previous prime is 6412663463. The next prime is 6412663549. The reversal of 6412663491 is 1943662146.

It is a happy number.

6412663491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6412663491 - 2⁵ = 6412663459 is a prime.

It is a super-2 number, since 2×6412663491² = 82244506097608614162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6412663421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123025 + ... + 167213.

It is an arithmetic number, because the mean of its divisors is an integer number (390065130).

Almost surely, 2^6412663491 is an apocalyptic number.

6412663491 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

6412663491 is a deficient number, since it is larger than the sum of its proper divisors (2948899629).

6412663491 is a wasteful number, since it uses less digits than its factorization.

6412663491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44327 (or 44266 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 6412663491 is about 80079.1077060678. The cubic root of 6412663491 is about 1857.8592833008.

It can be divided in two parts, 6412 and 663491, that added together give a triangular number (669903 = T₁₁₅₇).

The spelling of 6412663491 in words is "six billion, four hundred twelve million, six hundred sixty-three thousand, four hundred ninety-one".