2578857632346 has 8 divisors (see below), whose sum is σ = 5157715264704. Its totient is φ = 859619210780.

The previous prime is 2578857632339. The next prime is 2578857632347. The reversal of 2578857632346 is 6432367588752.

2578857632346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

2578857632346 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2578857632347) 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, 214904802690 + ... + 214904802701.

It is an arithmetic number, because the mean of its divisors is an integer number (644714408088).

Almost surely, 2^{2578857632346} is an apocalyptic number.

2578857632346 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.

2578857632346 is a wasteful number, since it uses less digits than its factorization.

2578857632346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429809605396.

The product of its digits is 406425600, while the sum is 66.

The spelling of 2578857632346 in words is "two trillion, five hundred seventy-eight billion, eight hundred fifty-seven million, six hundred thirty-two thousand, three hundred forty-six".