268061205880 has 64 divisors (see below), whose sum is σ = 683718890400. Its totient is φ = 93767155200.

The previous prime is 268061205877. The next prime is 268061205887. The reversal of 268061205880 is 88502160862.

It is a self number, because there is not a number n which added to its sum of digits gives 268061205880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268061205887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13555971 + ... + 13575730.

Almost surely, 2^268061205880 is an apocalyptic number.

268061205880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268061205880 is an abundant number, since it is smaller than the sum of its proper divisors (415657684520).

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

268061205880 is a wasteful number, since it uses less digits than its factorization.

268061205880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27131744 (or 27131740 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 46.

The spelling of 268061205880 in words is "two hundred sixty-eight billion, sixty-one million, two hundred five thousand, eight hundred eighty".