3642869389 has 2 divisors, whose sum is σ = 3642869390. Its totient is φ = 3642869388.

The previous prime is 3642869383. The next prime is 3642869401. The reversal of 3642869389 is 9839682463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3161812900 + 481056489 = 56230^2 + 21933^2 .

It is a cyclic number.

It is not a de Polignac number, because 3642869389 - 2¹³ = 3642861197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3642869383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821434694 + 1821434695.

It is an arithmetic number, because the mean of its divisors is an integer number (1821434695).

Almost surely, 2^3642869389 is an apocalyptic number.

It is an amenable number.

3642869389 is a deficient number, since it is larger than the sum of its proper divisors (1).

3642869389 is an equidigital number, since it uses as much as digits as its factorization.

3642869389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13436928, while the sum is 58.

The square root of 3642869389 is about 60356.1876612498. The cubic root of 3642869389 is about 1538.6784340120.

The spelling of 3642869389 in words is "three billion, six hundred forty-two million, eight hundred sixty-nine thousand, three hundred eighty-nine".