4278517255167 has 128 divisors (see below), whose sum is σ = 6394531046400. Its totient is φ = 2534535069696.

The previous prime is 4278517255123. The next prime is 4278517255219. The reversal of 4278517255167 is 7615527158724.

It is not a de Polignac number, because 4278517255167 - 2¹⁴ = 4278517238783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4278517255167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4278517250167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1363886623 + ... + 1363889759.

It is an arithmetic number, because the mean of its divisors is an integer number (49957273800).

Almost surely, 2^{4278517255167} is an apocalyptic number.

4278517255167 is a deficient number, since it is larger than the sum of its proper divisors (2116013791233).

4278517255167 is a wasteful number, since it uses less digits than its factorization.

4278517255167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3465.

The product of its digits is 32928000, while the sum is 60.

The spelling of 4278517255167 in words is "four trillion, two hundred seventy-eight billion, five hundred seventeen million, two hundred fifty-five thousand, one hundred sixty-seven".