3689388125284 has 9 divisors (see below), whose sum is σ = 6456435941977. Its totient is φ = 1844692141864.

The previous prime is 3689388125281. The next prime is 3689388125359. The reversal of 3689388125284 is 4825218839863.

The square root of 3689388125284 is 1920778.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 186950734884 + 3502437390400 = 432378^2 + 1871480^2 .

It is a super-2 number, since 2×3689388125284² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3689388125281) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3361362 + ... + 4321750.

Almost surely, 2^{3689388125284} is an apocalyptic number.

3689388125284 is the 1920778-th square number.

It is an amenable number.

3689388125284 is a deficient number, since it is larger than the sum of its proper divisors (2767047816693).

3689388125284 is an frugal number, since it uses more digits than its factorization.

3689388125284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920782 (or 960391 counting only the distinct ones).

The product of its digits is 159252480, while the sum is 67.

The spelling of 3689388125284 in words is "three trillion, six hundred eighty-nine billion, three hundred eighty-eight million, one hundred twenty-five thousand, two hundred eighty-four".