6343138872 has 96 divisors (see below), whose sum is σ = 20788466400. Its totient is φ = 1705715712.

The previous prime is 6343138871. The next prime is 6343138877. The reversal of 6343138872 is 2788313436.

6343138872 is a `hidden beast` number, since 634 + 3 + 1 + 3 + 8 + 8 + 7 + 2 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6343138871) 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, 361597 + ... + 378732.

It is an arithmetic number, because the mean of its divisors is an integer number (216546525).

Almost surely, 2^6343138872 is an apocalyptic number.

It is an amenable number.

6343138872 is an abundant number, since it is smaller than the sum of its proper divisors (14445327528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6343138872 is a wasteful number, since it uses less digits than its factorization.

6343138872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740365 (or 740358 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 6343138872 is about 79643.8250713764. The cubic root of 6343138872 is about 1851.1207109648.

The spelling of 6343138872 in words is "six billion, three hundred forty-three million, one hundred thirty-eight thousand, eight hundred seventy-two".