3788646399 has 8 divisors (see below), whose sum is σ = 5612809520. Its totient is φ = 2525764248.

The previous prime is 3788646383. The next prime is 3788646427. The reversal of 3788646399 is 9936468873.

3788646399 is a `hidden beast` number, since 3 + 7 + 8 + 86 + 463 + 99 = 666.

It is not a de Polignac number, because 3788646399 - 2⁴ = 3788646383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3788646349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70160092 + ... + 70160145.

It is an arithmetic number, because the mean of its divisors is an integer number (701601190).

Almost surely, 2^3788646399 is an apocalyptic number.

3788646399 is a deficient number, since it is larger than the sum of its proper divisors (1824163121).

3788646399 is a wasteful number, since it uses less digits than its factorization.

3788646399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140320246 (or 140320240 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 63.

The square root of 3788646399 is about 61551.9812759914. The cubic root of 3788646399 is about 1558.9350609032.

The spelling of 3788646399 in words is "three billion, seven hundred eighty-eight million, six hundred forty-six thousand, three hundred ninety-nine".