12740639319 has 6 divisors (see below), whose sum is σ = 18403145696. Its totient is φ = 8493759540.

The previous prime is 12740639227. The next prime is 12740639321. The reversal of 12740639319 is 91393604721.

12740639319 is a `hidden beast` number, since 1 + 2 + 7 + 4 + 0 + 639 + 3 + 1 + 9 = 666.

It is not a de Polignac number, because 12740639319 - 2¹¹ = 12740637271 is a prime.

It is a super-2 number, since 2×12740639319² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12740639819) 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, 707813287 + ... + 707813304.

Almost surely, 2^12740639319 is an apocalyptic number.

12740639319 is a deficient number, since it is larger than the sum of its proper divisors (5662506377).

12740639319 is a wasteful number, since it uses less digits than its factorization.

12740639319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415626597 (or 1415626594 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 12740639319 in words is "twelve billion, seven hundred forty million, six hundred thirty-nine thousand, three hundred nineteen".