12513751387682 has 4 divisors (see below), whose sum is σ = 18770627081526. Its totient is φ = 6256875693840.

The previous prime is 12513751387681. The next prime is 12513751387777. The reversal of 12513751387682 is 28678315731521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11475759232921 + 1037992154761 = 3387589^2 + 1018819^2 .

It is a super-2 number, since 2×12513751387682² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12513751387681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3128437846919 + ... + 3128437846922.

Almost surely, 2^{12513751387682} is an apocalyptic number.

12513751387682 is a deficient number, since it is larger than the sum of its proper divisors (6256875693844).

12513751387682 is an equidigital number, since it uses as much as digits as its factorization.

12513751387682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6256875693843.

The product of its digits is 16934400, while the sum is 59.

The spelling of 12513751387682 in words is "twelve trillion, five hundred thirteen billion, seven hundred fifty-one million, three hundred eighty-seven thousand, six hundred eighty-two".