1319785968 has 40 divisors (see below), whose sum is σ = 3442561408. Its totient is φ = 435655872.

The previous prime is 1319785921. The next prime is 1319785979. The reversal of 1319785968 is 8695879131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128530 + ... + 138417.

Almost surely, 2^1319785968 is an apocalyptic number.

It is an amenable number.

1319785968 is an abundant number, since it is smaller than the sum of its proper divisors (2122775440).

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

1319785968 is a wasteful number, since it uses less digits than its factorization.

1319785968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267061 (or 267055 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 57.

The square root of 1319785968 is about 36328.8586113024. The cubic root of 1319785968 is about 1096.9020181850.

The spelling of 1319785968 in words is "one billion, three hundred nineteen million, seven hundred eighty-five thousand, nine hundred sixty-eight".