268708495770 has 512 divisors, whose sum is σ = 857978956800. Its totient is φ = 59481354240.

The previous prime is 268708495763. The next prime is 268708495787. The reversal of 268708495770 is 77594807862.

268708495770 is a `hidden beast` number, since 2 + 6 + 8 + 70 + 8 + 495 + 7 + 70 = 666.

It is a super-2 number, since 2×268708495770² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 268708495698 and 268708495707.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 527914276 + ... + 527914784.

It is an arithmetic number, because the mean of its divisors is an integer number (1675740150).

Almost surely, 2^268708495770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268708495770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428989478400).

268708495770 is an abundant number, since it is smaller than the sum of its proper divisors (589270461030).

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

268708495770 is a wasteful number, since it uses less digits than its factorization.

268708495770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 47416320, while the sum is 63.

The spelling of 268708495770 in words is "two hundred sixty-eight billion, seven hundred eight million, four hundred ninety-five thousand, seven hundred seventy".