42779553713167 has 2 divisors, whose sum is σ = 42779553713168. Its totient is φ = 42779553713166.

The previous prime is 42779553713123. The next prime is 42779553713179. The reversal of 42779553713167 is 76131735597724.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42779553713167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42773553713167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21389776856583 + 21389776856584.

It is an arithmetic number, because the mean of its divisors is an integer number (21389776856584).

Almost surely, 2^{42779553713167} is an apocalyptic number.

42779553713167 is a deficient number, since it is larger than the sum of its proper divisors (1).

42779553713167 is an equidigital number, since it uses as much as digits as its factorization.

42779553713167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233377200, while the sum is 67.

The spelling of 42779553713167 in words is "forty-two trillion, seven hundred seventy-nine billion, five hundred fifty-three million, seven hundred thirteen thousand, one hundred sixty-seven".