3622857257856 has 128 divisors (see below), whose sum is σ = 9673751808000. Its totient is φ = 1201285490688.

The previous prime is 3622857257813. The next prime is 3622857257861. The reversal of 3622857257856 is 6587527582263.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 117043470 + ... + 117074418.

It is an arithmetic number, because the mean of its divisors is an integer number (75576186000).

Almost surely, 2^{3622857257856} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3622857257856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4836875904000).

3622857257856 is an abundant number, since it is smaller than the sum of its proper divisors (6050894550144).

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

3622857257856 is a wasteful number, since it uses less digits than its factorization.

3622857257856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32556 (or 32544 counting only the distinct ones).

The product of its digits is 338688000, while the sum is 66.

The spelling of 3622857257856 in words is "three trillion, six hundred twenty-two billion, eight hundred fifty-seven million, two hundred fifty-seven thousand, eight hundred fifty-six".