3115778788 has 6 divisors (see below), whose sum is σ = 5452612886. Its totient is φ = 1557889392.

The previous prime is 3115778713. The next prime is 3115778791. The reversal of 3115778788 is 8878775113.

3115778788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1814589604 + 1301189184 = 42598^2 + 36072^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389472345 + ... + 389472352.

Almost surely, 2^3115778788 is an apocalyptic number.

It is an amenable number.

3115778788 is a deficient number, since it is larger than the sum of its proper divisors (2336834098).

3115778788 is a wasteful number, since it uses less digits than its factorization.

3115778788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778944701 (or 778944699 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 55.

The square root of 3115778788 is about 55819.1614770412. The cubic root of 3115778788 is about 1460.5694263490.

The spelling of 3115778788 in words is "three billion, one hundred fifteen million, seven hundred seventy-eight thousand, seven hundred eighty-eight".