636263414249 has 2 divisors, whose sum is σ = 636263414250. Its totient is φ = 636263414248.

The previous prime is 636263414231. The next prime is 636263414309. The reversal of 636263414249 is 942414362636.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 544596769024 + 91666645225 = 737968^2 + 302765^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-636263414249 is a prime.

It is a super-2 number, since 2×636263414249² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 636263414197 and 636263414206.

It is not a weakly prime, because it can be changed into another prime (636263414209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318131707124 + 318131707125.

It is an arithmetic number, because the mean of its divisors is an integer number (318131707125).

Almost surely, 2^636263414249 is an apocalyptic number.

It is an amenable number.

636263414249 is a deficient number, since it is larger than the sum of its proper divisors (1).

636263414249 is an equidigital number, since it uses as much as digits as its factorization.

636263414249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4478976, while the sum is 50.

The spelling of 636263414249 in words is "six hundred thirty-six billion, two hundred sixty-three million, four hundred fourteen thousand, two hundred forty-nine".