1313678064 has 20 divisors (see below), whose sum is σ = 3393668456. Its totient is φ = 437892672.

The previous prime is 1313678063. The next prime is 1313678071. The reversal of 1313678064 is 4608763131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313678063) 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, 13684099 + ... + 13684194.

Almost surely, 2^1313678064 is an apocalyptic number.

It is an amenable number.

1313678064 is an abundant number, since it is smaller than the sum of its proper divisors (2079990392).

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

1313678064 is a wasteful number, since it uses less digits than its factorization.

1313678064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27368304 (or 27368298 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 1313678064 is about 36244.6970466026. The cubic root of 1313678064 is about 1095.2072650338.

The spelling of 1313678064 in words is "one billion, three hundred thirteen million, six hundred seventy-eight thousand, sixty-four".