5133621636 has 72 divisors (see below), whose sum is σ = 15245315904. Its totient is φ = 1435976640.

The previous prime is 5133621617. The next prime is 5133621709. The reversal of 5133621636 is 6361263315.

5133621636 is a `hidden beast` number, since 5 + 13 + 3 + 6 + 2 + 1 + 636 = 666.

It is a super-2 number, since 2×5133621636² = 52708142203214632992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 5133621636.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 493456 + ... + 503751.

Almost surely, 2^5133621636 is an apocalyptic number.

It is an amenable number.

5133621636 is an abundant number, since it is smaller than the sum of its proper divisors (10111694268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5133621636 is a wasteful number, since it uses less digits than its factorization.

5133621636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997241 (or 997236 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 5133621636 is about 71649.2961305273. The cubic root of 5133621636 is about 1725.0748842098.

The spelling of 5133621636 in words is "five billion, one hundred thirty-three million, six hundred twenty-one thousand, six hundred thirty-six".