4278257284728 has 64 divisors (see below), whose sum is σ = 12223954080000. Its totient is φ = 1222323040512.

The previous prime is 4278257284727. The next prime is 4278257284751. The reversal of 4278257284728 is 8274827528724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4278257284727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5596243 + ... + 6314621.

It is an arithmetic number, because the mean of its divisors is an integer number (190999282500).

Almost surely, 2^{4278257284728} is an apocalyptic number.

It is an amenable number.

4278257284728 is an abundant number, since it is smaller than the sum of its proper divisors (7945696795272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4278257284728 is a wasteful number, since it uses less digits than its factorization.

4278257284728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753844 (or 753840 counting only the distinct ones).

The product of its digits is 224788480, while the sum is 66.

The spelling of 4278257284728 in words is "four trillion, two hundred seventy-eight billion, two hundred fifty-seven million, two hundred eighty-four thousand, seven hundred twenty-eight".