6381372851 has 12 divisors (see below), whose sum is σ = 7813927080. Its totient is φ = 5181865920.

The previous prime is 6381372827. The next prime is 6381372871. The reversal of 6381372851 is 1582731836.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-6381372851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6381372871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3426230 + ... + 3428091.

It is an arithmetic number, because the mean of its divisors is an integer number (651160590).

Almost surely, 2^6381372851 is an apocalyptic number.

6381372851 is a deficient number, since it is larger than the sum of its proper divisors (1432554229).

6381372851 is a wasteful number, since it uses less digits than its factorization.

6381372851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6854354 (or 6854347 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 6381372851 is about 79883.4954856133. The cubic root of 6381372851 is about 1854.8325421398.

The spelling of 6381372851 in words is "six billion, three hundred eighty-one million, three hundred seventy-two thousand, eight hundred fifty-one".