3899291680 has 24 divisors (see below), whose sum is σ = 9212076972. Its totient is φ = 1559716608.

The previous prime is 3899291677. The next prime is 3899291681. The reversal of 3899291680 is 861929983.

It can be written as a sum of positive squares in 2 ways, for example, as 3862373904 + 36917776 = 62148^2 + 6076^2 .

It is not an unprimeable number, because it can be changed into a prime (3899291681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12185127 + ... + 12185446.

Almost surely, 2^3899291680 is an apocalyptic number.

It is an amenable number.

3899291680 is an abundant number, since it is smaller than the sum of its proper divisors (5312785292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3899291680 is a wasteful number, since it uses less digits than its factorization.

3899291680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24370588 (or 24370580 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 55.

The square root of 3899291680 is about 62444.3086277685. The cubic root of 3899291680 is about 1573.9656169448.

The spelling of 3899291680 in words is "three billion, eight hundred ninety-nine million, two hundred ninety-one thousand, six hundred eighty".