4636536261 has 24 divisors (see below), whose sum is σ = 7208621280. Its totient is φ = 2643090912.

The previous prime is 4636536239. The next prime is 4636536277. The reversal of 4636536261 is 1626356364.

It is a happy number.

It is not a de Polignac number, because 4636536261 - 2¹⁸ = 4636274117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4636536061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23955 + ... + 99231.

It is an arithmetic number, because the mean of its divisors is an integer number (300359220).

Almost surely, 2^4636536261 is an apocalyptic number.

It is an amenable number.

4636536261 is a deficient number, since it is larger than the sum of its proper divisors (2572085019).

4636536261 is a wasteful number, since it uses less digits than its factorization.

4636536261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75713 (or 75706 counting only the distinct ones).

The product of its digits is 466560, while the sum is 42.

The square root of 4636536261 is about 68092.1159973752. The cubic root of 4636536261 is about 1667.4950506309.

The spelling of 4636536261 in words is "four billion, six hundred thirty-six million, five hundred thirty-six thousand, two hundred sixty-one".