3123777652 has 6 divisors (see below), whose sum is σ = 5466610898. Its totient is φ = 1561888824.

The previous prime is 3123777623. The next prime is 3123777667. The reversal of 3123777652 is 2567773213.

It can be written as a sum of positive squares in only one way, i.e., 2362348816 + 761428836 = 48604^2 + 27594^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3123777599 and 3123777608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390472203 + ... + 390472210.

Almost surely, 2^3123777652 is an apocalyptic number.

It is an amenable number.

3123777652 is a deficient number, since it is larger than the sum of its proper divisors (2342833246).

3123777652 is a wasteful number, since it uses less digits than its factorization.

3123777652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780944417 (or 780944415 counting only the distinct ones).

The product of its digits is 370440, while the sum is 43.

The square root of 3123777652 is about 55890.7653552892. The cubic root of 3123777652 is about 1461.8182219945.

The spelling of 3123777652 in words is "three billion, one hundred twenty-three million, seven hundred seventy-seven thousand, six hundred fifty-two".