6363636431 has 8 divisors (see below), whose sum is σ = 6616494720. Its totient is φ = 6113006368.

The previous prime is 6363636421. The next prime is 6363636451. The reversal of 6363636431 is 1346363636.

6363636431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6363636431 - 2¹⁸ = 6363374287 is a prime.

It is a super-2 number, since 2×6363636431² = 80991737251900835522, 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 (6363636421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551231 + ... + 562656.

It is an arithmetic number, because the mean of its divisors is an integer number (827061840).

Almost surely, 2^6363636431 is an apocalyptic number.

6363636431 is a deficient number, since it is larger than the sum of its proper divisors (252858289).

6363636431 is a wasteful number, since it uses less digits than its factorization.

6363636431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114113.

The product of its digits is 419904, while the sum is 41.

The square root of 6363636431 is about 79772.4039439705. The cubic root of 6363636431 is about 1853.1125039414.

The spelling of 6363636431 in words is "six billion, three hundred sixty-three million, six hundred thirty-six thousand, four hundred thirty-one".