6381375427 has 8 divisors (see below), whose sum is σ = 7341948000. Its totient is φ = 5433039744.

The previous prime is 6381375419. The next prime is 6381375431. The reversal of 6381375427 is 7245731836.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6381375427 - 2³ = 6381375419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6381375467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3058102 + ... + 3060187.

It is an arithmetic number, because the mean of its divisors is an integer number (917743500).

Almost surely, 2^6381375427 is an apocalyptic number.

6381375427 is a deficient number, since it is larger than the sum of its proper divisors (960572573).

6381375427 is a wasteful number, since it uses less digits than its factorization.

6381375427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6118445.

The product of its digits is 846720, while the sum is 46.

The square root of 6381375427 is about 79883.5116090924. The cubic root of 6381375427 is about 1854.8327917229.

The spelling of 6381375427 in words is "six billion, three hundred eighty-one million, three hundred seventy-five thousand, four hundred twenty-seven".