268780145373200 has 30 divisors (see below), whose sum is σ = 645744299260074. Its totient is φ = 107512058149120.

The previous prime is 268780145373197. The next prime is 268780145373211. The reversal of 268780145373200 is 2373541087862.

It can be written as a sum of positive squares in 3 ways, for example, as 44971723561216 + 223808421811984 = 6706096^2 + 14960228^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 335975181317 + ... + 335975182116.

Almost surely, 2^{268780145373200} is an apocalyptic number.

268780145373200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268780145373200 is an abundant number, since it is smaller than the sum of its proper divisors (376964153886874).

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

268780145373200 is a wasteful number, since it uses less digits than its factorization.

268780145373200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671950363451 (or 671950363440 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 268780145373200 in words is "two hundred sixty-eight trillion, seven hundred eighty billion, one hundred forty-five million, three hundred seventy-three thousand, two hundred".