268710815850 has 144 divisors (see below), whose sum is σ = 703349393472. Its totient is φ = 67763717120.

The previous prime is 268710815803. The next prime is 268710815869. The reversal of 268710815850 is 58518017862.

It is a super-2 number, since 2×268710815850² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 268710815793 and 268710815802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 27322534 + ... + 27332366.

It is an arithmetic number, because the mean of its divisors is an integer number (4884370788).

Almost surely, 2^268710815850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268710815850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351674696736).

268710815850 is an abundant number, since it is smaller than the sum of its proper divisors (434638577622).

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

268710815850 is a wasteful number, since it uses less digits than its factorization.

268710815850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10049 (or 9955 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 51.

The spelling of 268710815850 in words is "two hundred sixty-eight billion, seven hundred ten million, eight hundred fifteen thousand, eight hundred fifty".