2555707440858 has 96 divisors (see below), whose sum is σ = 6074622703296. Its totient is φ = 712034400000.

The previous prime is 2555707440817. The next prime is 2555707440877. The reversal of 2555707440858 is 8580447075552.

It is a happy number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1829518 + ... + 2908358.

It is an arithmetic number, because the mean of its divisors is an integer number (63277319826).

Almost surely, 2^{2555707440858} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2555707440858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3037311351648).

2555707440858 is an abundant number, since it is smaller than the sum of its proper divisors (3518915262438).

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

2555707440858 is a wasteful number, since it uses less digits than its factorization.

2555707440858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079132 (or 1079121 counting only the distinct ones).

The product of its (nonzero) digits is 62720000, while the sum is 60.

The spelling of 2555707440858 in words is "two trillion, five hundred fifty-five billion, seven hundred seven million, four hundred forty thousand, eight hundred fifty-eight".