63779756279 has 2 divisors, whose sum is σ = 63779756280. Its totient is φ = 63779756278.

The previous prime is 63779756267. The next prime is 63779756329. The reversal of 63779756279 is 97265797736.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63779756279 is a prime.

It is a super-2 number, since 2×63779756279² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63779756219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31889878139 + 31889878140.

It is an arithmetic number, because the mean of its divisors is an integer number (31889878140).

Almost surely, 2^63779756279 is an apocalyptic number.

63779756279 is a deficient number, since it is larger than the sum of its proper divisors (1).

63779756279 is an equidigital number, since it uses as much as digits as its factorization.

63779756279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 210039480, while the sum is 68.

The spelling of 63779756279 in words is "sixty-three billion, seven hundred seventy-nine million, seven hundred fifty-six thousand, two hundred seventy-nine".