2558378110440 has 64 divisors (see below), whose sum is σ = 7675400131200. Its totient is φ = 682210536192.

The previous prime is 2558378110429. The next prime is 2558378110451. The reversal of 2558378110440 is 440118738552.

It is an interprime number because it is at equal distance from previous prime (2558378110429) and next prime (2558378110451).

It is a self number, because there is not a number n which added to its sum of digits gives 2558378110440.

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, 3258246 + ... + 3966474.

It is an arithmetic number, because the mean of its divisors is an integer number (119928127050).

Almost surely, 2^{2558378110440} is an apocalyptic number.

2558378110440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2558378110440 is an abundant number, since it is smaller than the sum of its proper divisors (5117022020760).

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

2558378110440 is a wasteful number, since it uses less digits than its factorization.

2558378110440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738346 (or 738342 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 2558378110440 in words is "two trillion, five hundred fifty-eight billion, three hundred seventy-eight million, one hundred ten thousand, four hundred forty".