3178875668 has 6 divisors (see below), whose sum is σ = 5563032426. Its totient is φ = 1589437832.

The previous prime is 3178875653. The next prime is 3178875671. The reversal of 3178875668 is 8665788713.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2491806724 + 687068944 = 49918^2 + 26212^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 397359455 + ... + 397359462.

It is an arithmetic number, because the mean of its divisors is an integer number (927172071).

Almost surely, 2^3178875668 is an apocalyptic number.

It is an amenable number.

3178875668 is a deficient number, since it is larger than the sum of its proper divisors (2384156758).

3178875668 is a wasteful number, since it uses less digits than its factorization.

3178875668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794718921 (or 794718919 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 59.

The square root of 3178875668 is about 56381.5188514818. The cubic root of 3178875668 is about 1470.3628252750.

The spelling of 3178875668 in words is "three billion, one hundred seventy-eight million, eight hundred seventy-five thousand, six hundred sixty-eight".