3155728612 has 12 divisors (see below), whose sum is σ = 5712957180. Its totient is φ = 1523455136.

The previous prime is 3155728603. The next prime is 3155728621. The reversal of 3155728612 is 2168275513.

It is an interprime number because it is at equal distance from previous prime (3155728603) and next prime (3155728621).

It can be written as a sum of positive squares in 2 ways, for example, as 2411202816 + 744525796 = 49104^2 + 27286^2 .

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, 13602163 + ... + 13602394.

It is an arithmetic number, because the mean of its divisors is an integer number (476079765).

Almost surely, 2^3155728612 is an apocalyptic number.

It is an amenable number.

3155728612 is a deficient number, since it is larger than the sum of its proper divisors (2557228568).

3155728612 is a wasteful number, since it uses less digits than its factorization.

3155728612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27204590 (or 27204588 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 3155728612 is about 56175.8721516631. The cubic root of 3155728612 is about 1466.7853010328.

The spelling of 3155728612 in words is "three billion, one hundred fifty-five million, seven hundred twenty-eight thousand, six hundred twelve".