4255384657887 has 256 divisors, whose sum is σ = 7529785344000. Its totient is φ = 2367331971840.

The previous prime is 4255384657879. The next prime is 4255384657889. The reversal of 4255384657887 is 7887564835524.

It is a happy number.

4255384657887 is a `hidden beast` number, since 4 + 2 + 5 + 5 + 3 + 8 + 46 + 578 + 8 + 7 = 666.

It is not a de Polignac number, because 4255384657887 - 2³ = 4255384657879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4255384657889) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 2940831798 + ... + 2940833244.

It is an arithmetic number, because the mean of its divisors is an integer number (29413224000).

Almost surely, 2^{4255384657887} is an apocalyptic number.

4255384657887 is a deficient number, since it is larger than the sum of its proper divisors (3274400686113).

4255384657887 is a wasteful number, since it uses less digits than its factorization.

4255384657887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1612 counting only the distinct ones).

The product of its digits is 1806336000, while the sum is 72.

The spelling of 4255384657887 in words is "four trillion, two hundred fifty-five billion, three hundred eighty-four million, six hundred fifty-seven thousand, eight hundred eighty-seven".