22857559950 has 96 divisors (see below), whose sum is σ = 60228082656. Its totient is φ = 5717032960.

The previous prime is 22857559943. The next prime is 22857559951. The reversal of 22857559950 is 5995575822.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22857559951) by changing a digit.

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, 731854 + ... + 762446.

It is an arithmetic number, because the mean of its divisors is an integer number (627375861).

Almost surely, 2^22857559950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22857559950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30114041328).

22857559950 is an abundant number, since it is smaller than the sum of its proper divisors (37370522706).

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

22857559950 is a wasteful number, since it uses less digits than its factorization.

22857559950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30918 (or 30913 counting only the distinct ones).

The product of its (nonzero) digits is 11340000, while the sum is 57.

The spelling of 22857559950 in words is "twenty-two billion, eight hundred fifty-seven million, five hundred fifty-nine thousand, nine hundred fifty".