2557812085602 has 8 divisors (see below), whose sum is σ = 5115624171216. Its totient is φ = 852604028532.

The previous prime is 2557812085589. The next prime is 2557812085603. The reversal of 2557812085602 is 2065802187552.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

2557812085602 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2557812085603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213151007128 + ... + 213151007139.

It is an arithmetic number, because the mean of its divisors is an integer number (639453021402).

Almost surely, 2^{2557812085602} is an apocalyptic number.

2557812085602 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2557812085602 is a wasteful number, since it uses less digits than its factorization.

2557812085602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426302014272.

The product of its (nonzero) digits is 2688000, while the sum is 51.

The spelling of 2557812085602 in words is "two trillion, five hundred fifty-seven billion, eight hundred twelve million, eighty-five thousand, six hundred two".