1268706568 has 8 divisors (see below), whose sum is σ = 2378824830. Its totient is φ = 634353280.

The previous prime is 1268706547. The next prime is 1268706599. The reversal of 1268706568 is 8656078621.

It can be written as a sum of positive squares in only one way, i.e., 1017737604 + 250968964 = 31902^2 + 15842^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79294153 + ... + 79294168.

Almost surely, 2^1268706568 is an apocalyptic number.

It is an amenable number.

1268706568 is a deficient number, since it is larger than the sum of its proper divisors (1110118262).

1268706568 is a wasteful number, since it uses less digits than its factorization.

1268706568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158588327 (or 158588323 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 1268706568 is about 35618.9074509592. The cubic root of 1268706568 is about 1082.5643704021.

The spelling of 1268706568 in words is "one billion, two hundred sixty-eight million, seven hundred six thousand, five hundred sixty-eight".