3138668718 has 32 divisors (see below), whose sum is σ = 6503331840. Its totient is φ = 1008802080.

The previous prime is 3138668717. The next prime is 3138668719. The reversal of 3138668718 is 8178668313.

It is an interprime number because it is at equal distance from previous prime (3138668717) and next prime (3138668719).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138668713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21063 + ... + 81981.

It is an arithmetic number, because the mean of its divisors is an integer number (203229120).

Almost surely, 2^3138668718 is an apocalyptic number.

3138668718 is an abundant number, since it is smaller than the sum of its proper divisors (3364663122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3138668718 is a wasteful number, since it uses less digits than its factorization.

3138668718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61232.

The product of its digits is 1161216, while the sum is 51.

The square root of 3138668718 is about 56023.8227721029. The cubic root of 3138668718 is about 1464.1373727062.

The spelling of 3138668718 in words is "three billion, one hundred thirty-eight million, six hundred sixty-eight thousand, seven hundred eighteen".