268867661292 has 36 divisors (see below), whose sum is σ = 679667180920. Its totient is φ = 89618666112.

The previous prime is 268867661269. The next prime is 268867661303. The reversal of 268867661292 is 292166768862.

268867661292 is a `hidden beast` number, since 2 + 6 + 8 + 8 + 6 + 7 + 6 + 612 + 9 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 749748 + ... + 1048740.

Almost surely, 2^268867661292 is an apocalyptic number.

It is an amenable number.

268867661292 is an abundant number, since it is smaller than the sum of its proper divisors (410799519628).

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

268867661292 is a wasteful number, since it uses less digits than its factorization.

268867661292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323982 (or 323977 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The spelling of 268867661292 in words is "two hundred sixty-eight billion, eight hundred sixty-seven million, six hundred sixty-one thousand, two hundred ninety-two".