6381975744 has 70 divisors (see below), whose sum is σ = 18918190764. Its totient is φ = 2127323520.

The previous prime is 6381975727. The next prime is 6381975757. The reversal of 6381975744 is 4475791836.

6381975744 is a `hidden beast` number, since 63 + 8 + 1 + 9 + 7 + 574 + 4 = 666.

It is a super-2 number, since 2×6381975744² = 81459228794008707072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 610362 + ... + 620729.

Almost surely, 2^6381975744 is an apocalyptic number.

6381975744 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6381975744 is an abundant number, since it is smaller than the sum of its proper divisors (12536215020).

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

6381975744 is a wasteful number, since it uses less digits than its factorization.

6381975744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231115 (or 1231096 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 6381975744 is about 79887.2689732225. The cubic root of 6381975744 is about 1854.8909533087.

The spelling of 6381975744 in words is "six billion, three hundred eighty-one million, nine hundred seventy-five thousand, seven hundred forty-four".