3138737694 has 8 divisors (see below), whose sum is σ = 6277475400. Its totient is φ = 1046245896.

The previous prime is 3138737687. The next prime is 3138737717. The reversal of 3138737694 is 4967378313.

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

3138737694 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 261561469 + ... + 261561480.

It is an arithmetic number, because the mean of its divisors is an integer number (784684425).

Almost surely, 2^3138737694 is an apocalyptic number.

3138737694 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3138737694 is a wasteful number, since it uses less digits than its factorization.

3138737694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523122954.

The product of its digits is 2286144, while the sum is 51.

The square root of 3138737694 is about 56024.4383639854. The cubic root of 3138737694 is about 1464.1480980177.

The spelling of 3138737694 in words is "three billion, one hundred thirty-eight million, seven hundred thirty-seven thousand, six hundred ninety-four".