268680664378 has 32 divisors (see below), whose sum is σ = 464275582848. Its totient is φ = 114229440000.

The previous prime is 268680664361. The next prime is 268680664487. The reversal of 268680664378 is 873466086862.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5479426 + ... + 5528242.

It is an arithmetic number, because the mean of its divisors is an integer number (14508611964).

Almost surely, 2^268680664378 is an apocalyptic number.

268680664378 is a deficient number, since it is larger than the sum of its proper divisors (195594918470).

268680664378 is a wasteful number, since it uses less digits than its factorization.

268680664378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51958.

The product of its (nonzero) digits is 111476736, while the sum is 64.

The spelling of 268680664378 in words is "two hundred sixty-eight billion, six hundred eighty million, six hundred sixty-four thousand, three hundred seventy-eight".