3155788628 has 6 divisors (see below), whose sum is σ = 5522630106. Its totient is φ = 1577894312.

The previous prime is 3155788621. The next prime is 3155788651. The reversal of 3155788628 is 8268875513.

It can be written as a sum of positive squares in only one way, i.e., 1640088004 + 1515700624 = 40498^2 + 38932^2 .

It is a super-2 number, since 2×3155788628² = 19918003729228244768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3155788628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3155788621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394473575 + ... + 394473582.

It is an arithmetic number, because the mean of its divisors is an integer number (920438351).

Almost surely, 2^3155788628 is an apocalyptic number.

It is an amenable number.

3155788628 is a deficient number, since it is larger than the sum of its proper divisors (2366841478).

3155788628 is a wasteful number, since it uses less digits than its factorization.

3155788628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788947161 (or 788947159 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 53.

The square root of 3155788628 is about 56176.4063286359. The cubic root of 3155788628 is about 1466.7945994695.

The spelling of 3155788628 in words is "three billion, one hundred fifty-five million, seven hundred eighty-eight thousand, six hundred twenty-eight".