1319318964 has 72 divisors (see below), whose sum is σ = 3379390560. Its totient is φ = 433944000.

The previous prime is 1319318873. The next prime is 1319318971. The reversal of 1319318964 is 4698139131.

1319318964 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1784907 + ... + 1785645.

It is an arithmetic number, because the mean of its divisors is an integer number (46935980).

Almost surely, 2^1319318964 is an apocalyptic number.

It is an amenable number.

1319318964 is an abundant number, since it is smaller than the sum of its proper divisors (2060071596).

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

1319318964 is a wasteful number, since it uses less digits than its factorization.

1319318964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1336 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 1319318964 is about 36322.4305904767. The cubic root of 1319318964 is about 1096.7726239562.

The spelling of 1319318964 in words is "one billion, three hundred nineteen million, three hundred eighteen thousand, nine hundred sixty-four".