3915315994 has 8 divisors (see below), whose sum is σ = 5879976480. Its totient is φ = 1955323836.

The previous prime is 3915315983. The next prime is 3915316043. The reversal of 3915315994 is 4995135193.

It is a happy number.

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

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, 1164984 + ... + 1168339.

It is an arithmetic number, because the mean of its divisors is an integer number (734997060).

Almost surely, 2^3915315994 is an apocalyptic number.

3915315994 is a deficient number, since it is larger than the sum of its proper divisors (1964660486).

3915315994 is a wasteful number, since it uses less digits than its factorization.

3915315994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334164.

The product of its digits is 656100, while the sum is 49.

The square root of 3915315994 is about 62572.4859183331. The cubic root of 3915315994 is about 1576.1187642404.

The spelling of 3915315994 in words is "three billion, nine hundred fifteen million, three hundred fifteen thousand, nine hundred ninety-four".