268746968820 has 96 divisors (see below), whose sum is σ = 821015838720. Its totient is φ = 65141573760.

The previous prime is 268746968773. The next prime is 268746968839. The reversal of 268746968820 is 28869647862.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5428941 + ... + 5478219.

It is an arithmetic number, because the mean of its divisors is an integer number (8552248320).

Almost surely, 2^268746968820 is an apocalyptic number.

268746968820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268746968820 is an abundant number, since it is smaller than the sum of its proper divisors (552268869900).

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

268746968820 is a wasteful number, since it uses less digits than its factorization.

268746968820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57565 (or 57563 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 66.

The spelling of 268746968820 in words is "two hundred sixty-eight billion, seven hundred forty-six million, nine hundred sixty-eight thousand, eight hundred twenty".