1268745699 has 24 divisors (see below), whose sum is σ = 1836983280. Its totient is φ = 778557312.

The previous prime is 1268745689. The next prime is 1268745703. The reversal of 1268745699 is 9965478621.

It is not a de Polignac number, because 1268745699 - 2¹⁶ = 1268680163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1268745689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185757 + ... + 192465.

It is an arithmetic number, because the mean of its divisors is an integer number (76540970).

Almost surely, 2^1268745699 is an apocalyptic number.

1268745699 is a deficient number, since it is larger than the sum of its proper divisors (568237581).

1268745699 is a wasteful number, since it uses less digits than its factorization.

1268745699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7111 (or 7098 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 57.

The square root of 1268745699 is about 35619.4567476822. The cubic root of 1268745699 is about 1082.5755002126.

The spelling of 1268745699 in words is "one billion, two hundred sixty-eight million, seven hundred forty-five thousand, six hundred ninety-nine".