3138647650 has 24 divisors (see below), whose sum is σ = 5841478800. Its totient is φ = 1254686160.

The previous prime is 3138647623. The next prime is 3138647671. The reversal of 3138647650 is 567468313.

It is a super-2 number, since 2×3138647650² = 19702218141701045000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3138647597 and 3138647606.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66477 + ... + 103423.

It is an arithmetic number, because the mean of its divisors is an integer number (243394950).

Almost surely, 2^3138647650 is an apocalyptic number.

3138647650 is a deficient number, since it is larger than the sum of its proper divisors (2702831150).

3138647650 is a wasteful number, since it uses less digits than its factorization.

3138647650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38658 (or 38653 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 3138647650 is about 56023.6347446326. The cubic root of 3138647650 is about 1464.1340967402.

The spelling of 3138647650 in words is "three billion, one hundred thirty-eight million, six hundred forty-seven thousand, six hundred fifty".