6363690857 has 2 divisors, whose sum is σ = 6363690858. Its totient is φ = 6363690856.

The previous prime is 6363690799. The next prime is 6363690863. The reversal of 6363690857 is 7580963636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3652510096 + 2711180761 = 60436^2 + 52069^2 .

It is a cyclic number.

It is not a de Polignac number, because 6363690857 - 2¹⁰ = 6363689833 is a prime.

It is a super-2 number, since 2×6363690857² = 80993122646930788898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6363690799 and 6363690808.

It is not a weakly prime, because it can be changed into another prime (6363690877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3181845428 + 3181845429.

It is an arithmetic number, because the mean of its divisors is an integer number (3181845429).

Almost surely, 2^6363690857 is an apocalyptic number.

It is an amenable number.

6363690857 is a deficient number, since it is larger than the sum of its proper divisors (1).

6363690857 is an equidigital number, since it uses as much as digits as its factorization.

6363690857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The square root of 6363690857 is about 79772.7450762477. The cubic root of 6363690857 is about 1853.1177869383.

The spelling of 6363690857 in words is "six billion, three hundred sixty-three million, six hundred ninety thousand, eight hundred fifty-seven".