12502638875249 has 4 divisors (see below), whose sum is σ = 12503705938164. Its totient is φ = 12501571812336.

The previous prime is 12502638875197. The next prime is 12502638875263. The reversal of 12502638875249 is 94257883620521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6042943897600 + 6459694977649 = 2458240^2 + 2541593^2 .

It is a cyclic number.

It is not a de Polignac number, because 12502638875249 - 2⁸ = 12502638874993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12502638875191 and 12502638875200.

It is not an unprimeable number, because it can be changed into a prime (12502638874249) 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, 533513882 + ... + 533537315.

It is an arithmetic number, because the mean of its divisors is an integer number (3125926484541).

It is a 1-persistent number, because it is pandigital, but 2⋅12502638875249 = 25005277750498 is not.

Almost surely, 2^{12502638875249} is an apocalyptic number.

It is an amenable number.

12502638875249 is a deficient number, since it is larger than the sum of its proper divisors (1067062915).

12502638875249 is a wasteful number, since it uses less digits than its factorization.

12502638875249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067062914.

The product of its (nonzero) digits is 58060800, while the sum is 62.

The spelling of 12502638875249 in words is "twelve trillion, five hundred two billion, six hundred thirty-eight million, eight hundred seventy-five thousand, two hundred forty-nine".