3639251948 has 24 divisors (see below), whose sum is σ = 6853873824. Its totient is φ = 1684512000.

The previous prime is 3639251927. The next prime is 3639251951. The reversal of 3639251948 is 8491529363.

It is a happy number.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3639251896 and 3639251905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434528 + ... + 442823.

It is an arithmetic number, because the mean of its divisors is an integer number (285578076).

Almost surely, 2^3639251948 is an apocalyptic number.

It is an amenable number.

3639251948 is a deficient number, since it is larger than the sum of its proper divisors (3214621876).

3639251948 is a wasteful number, since it uses less digits than its factorization.

3639251948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877433 (or 877431 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 50.

The square root of 3639251948 is about 60326.2127768684. The cubic root of 3639251948 is about 1538.1689526770.

The spelling of 3639251948 in words is "three billion, six hundred thirty-nine million, two hundred fifty-one thousand, nine hundred forty-eight".