4638690069 has 32 divisors (see below), whose sum is σ = 6735657600. Its totient is φ = 2822618880.

The previous prime is 4638690061. The next prime is 4638690109. The reversal of 4638690069 is 9600968364.

It is not a de Polignac number, because 4638690069 - 2³ = 4638690061 is a prime.

It is a super-2 number, since 2×4638690069² = 43034891112478449522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4638690061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1456659 + ... + 1459839.

It is an arithmetic number, because the mean of its divisors is an integer number (210489300).

Almost surely, 2^4638690069 is an apocalyptic number.

It is an amenable number.

4638690069 is a deficient number, since it is larger than the sum of its proper divisors (2096967531).

4638690069 is a wasteful number, since it uses less digits than its factorization.

4638690069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3605.

The product of its (nonzero) digits is 1679616, while the sum is 51.

The square root of 4638690069 is about 68107.9295603676. The cubic root of 4638690069 is about 1667.7532108902.

The spelling of 4638690069 in words is "four billion, six hundred thirty-eight million, six hundred ninety thousand, sixty-nine".