6138778316 has 12 divisors (see below), whose sum is σ = 11719485960. Its totient is φ = 2790353760.

The previous prime is 6138778313. The next prime is 6138778333.

6138778316 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (6138778313) 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, 69758801 + ... + 69758888.

It is an arithmetic number, because the mean of its divisors is an integer number (976623830).

Almost surely, 2^6138778316 is an apocalyptic number.

It is an amenable number.

6138778316 is a deficient number, since it is larger than the sum of its proper divisors (5580707644).

6138778316 is a wasteful number, since it uses less digits than its factorization.

6138778316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139517704 (or 139517702 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 50.

The square root of 6138778316 is about 78350.3561957443. The cubic root of 6138778316 is about 1831.0237750479.

The spelling of 6138778316 in words is "six billion, one hundred thirty-eight million, seven hundred seventy-eight thousand, three hundred sixteen".