1268767782 has 12 divisors (see below), whose sum is σ = 2748996900. Its totient is φ = 422922588.

The previous prime is 1268767781. The next prime is 1268767793. The reversal of 1268767782 is 2877678621.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268767781) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35243532 + ... + 35243567.

It is an arithmetic number, because the mean of its divisors is an integer number (229083075).

Almost surely, 2^1268767782 is an apocalyptic number.

1268767782 is an abundant number, since it is smaller than the sum of its proper divisors (1480229118).

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

1268767782 is a wasteful number, since it uses less digits than its factorization.

1268767782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70487107 (or 70487104 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 54.

The square root of 1268767782 is about 35619.7667314091. The cubic root of 1268767782 is about 1082.5817810552.

The spelling of 1268767782 in words is "one billion, two hundred sixty-eight million, seven hundred sixty-seven thousand, seven hundred eighty-two".