3788636836 has 12 divisors (see below), whose sum is σ = 6630672412. Its totient is φ = 1894159008.

The previous prime is 3788636809. The next prime is 3788636897. The reversal of 3788636836 is 6386368873.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 697276836 + 3091360000 = 26406^2 + 55600^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25546 + ... + 90718.

Almost surely, 2^3788636836 is an apocalyptic number.

It is an amenable number.

3788636836 is a deficient number, since it is larger than the sum of its proper divisors (2842035576).

3788636836 is a wasteful number, since it uses less digits than its factorization.

3788636836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79710 (or 79708 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 58.

The square root of 3788636836 is about 61551.9035936339. The cubic root of 3788636836 is about 1558.9337492554.

The spelling of 3788636836 in words is "three billion, seven hundred eighty-eight million, six hundred thirty-six thousand, eight hundred thirty-six".