5906645389 has 4 divisors (see below), whose sum is σ = 5921375580. Its totient is φ = 5891915200.

The previous prime is 5906645369. The next prime is 5906645399. The reversal of 5906645389 is 9835466095.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3606963364 + 2299682025 = 60058^2 + 47955^2 .

It is a cyclic number.

It is not a de Polignac number, because 5906645389 - 2¹³ = 5906637197 is a prime.

It is a super-2 number, since 2×5906645389² = 69776919502789922642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5906645369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7364494 + ... + 7365295.

It is an arithmetic number, because the mean of its divisors is an integer number (1480343895).

Almost surely, 2^5906645389 is an apocalyptic number.

It is an amenable number.

5906645389 is a deficient number, since it is larger than the sum of its proper divisors (14730191).

5906645389 is a wasteful number, since it uses less digits than its factorization.

5906645389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14730190.

The product of its (nonzero) digits is 6998400, while the sum is 55.

The square root of 5906645389 is about 76854.7031026729. The cubic root of 5906645389 is about 1807.6470334743.

The spelling of 5906645389 in words is "five billion, nine hundred six million, six hundred forty-five thousand, three hundred eighty-nine".