268240646280 has 32 divisors (see below), whose sum is σ = 804721939200. Its totient is φ = 71530838976.

The previous prime is 268240646279. The next prime is 268240646281. The reversal of 268240646280 is 82646042862.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (268240646279) and next prime (268240646281).

It is not an unprimeable number, because it can be changed into a prime (268240646281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117669240 + ... + 1117669479.

It is an arithmetic number, because the mean of its divisors is an integer number (25147560600).

Almost surely, 2^268240646280 is an apocalyptic number.

268240646280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268240646280 is an abundant number, since it is smaller than the sum of its proper divisors (536481292920).

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

268240646280 is a wasteful number, since it uses less digits than its factorization.

268240646280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235338733 (or 2235338729 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 48.

The spelling of 268240646280 in words is "two hundred sixty-eight billion, two hundred forty million, six hundred forty-six thousand, two hundred eighty".