6374943381 has 4 divisors (see below), whose sum is σ = 8499924512. Its totient is φ = 4249962252.

The previous prime is 6374943361. The next prime is 6374943383. The reversal of 6374943381 is 1833494736.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6374943381 - 2¹⁸ = 6374681237 is a prime.

It is a super-2 number, since 2×6374943381² = 81279806221911422322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6374943381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6374943383) 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, 1062490561 + ... + 1062490566.

It is an arithmetic number, because the mean of its divisors is an integer number (2124981128).

Almost surely, 2^6374943381 is an apocalyptic number.

It is an amenable number.

6374943381 is a deficient number, since it is larger than the sum of its proper divisors (2124981131).

6374943381 is a wasteful number, since it uses less digits than its factorization.

6374943381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124981130.

The product of its digits is 1306368, while the sum is 48.

The square root of 6374943381 is about 79843.2425506379. The cubic root of 6374943381 is about 1854.2093952682.

The spelling of 6374943381 in words is "six billion, three hundred seventy-four million, nine hundred forty-three thousand, three hundred eighty-one".