63426777762431 has 2 divisors, whose sum is σ = 63426777762432. Its totient is φ = 63426777762430.

The previous prime is 63426777762371. The next prime is 63426777762437. The reversal of 63426777762431 is 13426777762436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63426777762431 - 2⁶ = 63426777762367 is a prime.

It is a super-2 number, since 2×63426777762431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63426777762437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31713388881215 + 31713388881216.

It is an arithmetic number, because the mean of its divisors is an integer number (31713388881216).

Almost surely, 2^{63426777762431} is an apocalyptic number.

63426777762431 is a deficient number, since it is larger than the sum of its proper divisors (1).

63426777762431 is an equidigital number, since it uses as much as digits as its factorization.

63426777762431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 298722816, while the sum is 65.

The spelling of 63426777762431 in words is "sixty-three trillion, four hundred twenty-six billion, seven hundred seventy-seven million, seven hundred sixty-two thousand, four hundred thirty-one".