4278255387156 has 48 divisors (see below), whose sum is σ = 11100798609600. Its totient is φ = 1424924722656.

The previous prime is 4278255387143. The next prime is 4278255387169. The reversal of 4278255387156 is 6517835528724.

4278255387156 is a `hidden beast` number, since 4 + 2 + 7 + 8 + 2 + 553 + 8 + 71 + 5 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (4278255387143) and next prime (4278255387169).

It is a junction number, because it is equal to n+sod(n) for n = 4278255387093 and 4278255387102.

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, 15983410 + ... + 16248873.

It is an arithmetic number, because the mean of its divisors is an integer number (231266637700).

Almost surely, 2^{4278255387156} is an apocalyptic number.

It is an amenable number.

4278255387156 is an abundant number, since it is smaller than the sum of its proper divisors (6822543222444).

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

4278255387156 is a wasteful number, since it uses less digits than its factorization.

4278255387156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32233525 (or 32233517 counting only the distinct ones).

The product of its digits is 112896000, while the sum is 63.

The spelling of 4278255387156 in words is "four trillion, two hundred seventy-eight billion, two hundred fifty-five million, three hundred eighty-seven thousand, one hundred fifty-six".