12712562499 has 96 divisors (see below), whose sum is σ = 21778122240. Its totient is φ = 6535807488.

The previous prime is 12712562497. The next prime is 12712562519. The reversal of 12712562499 is 99426521721.

It is a happy number.

It is a Cunningham number, because it is equal to 112750²-1.

It is not a de Polignac number, because 12712562499 - 2¹ = 12712562497 is a prime.

It is a super-2 number, since 2×12712562499² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12712562497) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15446202 + ... + 15447024.

It is an arithmetic number, because the mean of its divisors is an integer number (226855440).

Almost surely, 2^12712562499 is an apocalyptic number.

12712562499 is a deficient number, since it is larger than the sum of its proper divisors (9065559741).

12712562499 is a wasteful number, since it uses less digits than its factorization.

12712562499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049 (or 1042 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The spelling of 12712562499 in words is "twelve billion, seven hundred twelve million, five hundred sixty-two thousand, four hundred ninety-nine".