1268607812 has 12 divisors (see below), whose sum is σ = 2226773136. Its totient is φ = 632386920.

The previous prime is 1268607787. The next prime is 1268607817. The reversal of 1268607812 is 2187068621.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1268607812.

It is not an unprimeable number, because it can be changed into a prime (1268607817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477758 + ... + 480405.

It is an arithmetic number, because the mean of its divisors is an integer number (185564428).

Almost surely, 2^1268607812 is an apocalyptic number.

It is an amenable number.

1268607812 is a deficient number, since it is larger than the sum of its proper divisors (958165324).

1268607812 is a wasteful number, since it uses less digits than its factorization.

1268607812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958498 (or 958496 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 1268607812 is about 35617.5211377771. The cubic root of 1268607812 is about 1082.5362807703.

The spelling of 1268607812 in words is "one billion, two hundred sixty-eight million, six hundred seven thousand, eight hundred twelve".