6319670863138 has 4 divisors (see below), whose sum is σ = 9479506294710. Its totient is φ = 3159835431568.

The previous prime is 6319670863127. The next prime is 6319670863139. The reversal of 6319670863138 is 8313680769136.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4476639261249 + 1843031601889 = 2115807^2 + 1357583^2 .

It is not an unprimeable number, because it can be changed into a prime (6319670863139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1579917715783 + ... + 1579917715786.

Almost surely, 2^{6319670863138} is an apocalyptic number.

6319670863138 is a deficient number, since it is larger than the sum of its proper divisors (3159835431572).

6319670863138 is a wasteful number, since it uses less digits than its factorization.

6319670863138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159835431571.

The product of its (nonzero) digits is 23514624, while the sum is 61.

The spelling of 6319670863138 in words is "six trillion, three hundred nineteen billion, six hundred seventy million, eight hundred sixty-three thousand, one hundred thirty-eight".