4278517412455 has 16 divisors (see below), whose sum is σ = 6031811961504. Its totient is φ = 2872291409280.

The previous prime is 4278517412441. The next prime is 4278517412473. The reversal of 4278517412455 is 5542147158724.

4278517412455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4278517412455 - 2²⁵ = 4278483858023 is a prime.

It is a super-2 number, since 2×4278517412455² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4278517412396 and 4278517412405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2991969504 + ... + 2991970933.

It is an arithmetic number, because the mean of its divisors is an integer number (376988247594).

Almost surely, 2^{4278517412455} is an apocalyptic number.

4278517412455 is a deficient number, since it is larger than the sum of its proper divisors (1753294549049).

4278517412455 is a wasteful number, since it uses less digits than its factorization.

4278517412455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5983940466.

The product of its digits is 12544000, while the sum is 55.

The spelling of 4278517412455 in words is "four trillion, two hundred seventy-eight billion, five hundred seventeen million, four hundred twelve thousand, four hundred fifty-five".