3639189952 has 14 divisors (see below), whose sum is σ = 7221517688. Its totient is φ = 1819594944.

The previous prime is 3639189929. The next prime is 3639189959. The reversal of 3639189952 is 2599819363.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3639189893 and 3639189902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3639189959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28431108 + ... + 28431235.

It is an arithmetic number, because the mean of its divisors is an integer number (515822692).

Almost surely, 2^3639189952 is an apocalyptic number.

3639189952 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3639189952 is a deficient number, since it is larger than the sum of its proper divisors (3582327736).

3639189952 is an equidigital number, since it uses as much as digits as its factorization.

3639189952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56862355 (or 56862345 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 55.

The square root of 3639189952 is about 60325.6989350310. The cubic root of 3639189952 is about 1538.1602182022.

The spelling of 3639189952 in words is "three billion, six hundred thirty-nine million, one hundred eighty-nine thousand, nine hundred fifty-two".