268560535740 has 144 divisors (see below), whose sum is σ = 877900599072. Its totient is φ = 61163472384.

The previous prime is 268560535693. The next prime is 268560535823. The reversal of 268560535740 is 47535065862.

It is a super-2 number, since 2×268560535740² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 649494 + ... + 979266.

It is an arithmetic number, because the mean of its divisors is an integer number (6096531938).

Almost surely, 2^268560535740 is an apocalyptic number.

268560535740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268560535740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438950299536).

268560535740 is an abundant number, since it is smaller than the sum of its proper divisors (609340063332).

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

268560535740 is a wasteful number, since it uses less digits than its factorization.

268560535740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330076 (or 330067 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 51.

The spelling of 268560535740 in words is "two hundred sixty-eight billion, five hundred sixty million, five hundred thirty-five thousand, seven hundred forty".