3161993786 has 8 divisors (see below), whose sum is σ = 5420560800. Its totient is φ = 1355140188.

The previous prime is 3161993773. The next prime is 3161993797. The reversal of 3161993786 is 6873991613.

It is a happy number.

3161993786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×3161993786² = 19996409405405227592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112928336 + ... + 112928363.

It is an arithmetic number, because the mean of its divisors is an integer number (677570100).

Almost surely, 2^3161993786 is an apocalyptic number.

3161993786 is a deficient number, since it is larger than the sum of its proper divisors (2258567014).

3161993786 is a wasteful number, since it uses less digits than its factorization.

3161993786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225856708.

The product of its digits is 1469664, while the sum is 53.

The square root of 3161993786 is about 56231.6084244440. The cubic root of 3161993786 is about 1467.7553454021.

The spelling of 3161993786 in words is "three billion, one hundred sixty-one million, nine hundred ninety-three thousand, seven hundred eighty-six".