12531510190079 has 4 divisors (see below), whose sum is σ = 12551820579984. Its totient is φ = 12511199800176.

The previous prime is 12531510190057. The next prime is 12531510190109. The reversal of 12531510190079 is 97009101513521.

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

It is a cyclic number.

It is not a de Polignac number, because 12531510190079 - 2⁸ = 12531510189823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12531510190049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10155194027 + ... + 10155195260.

It is an arithmetic number, because the mean of its divisors is an integer number (3137955144996).

Almost surely, 2^{12531510190079} is an apocalyptic number.

12531510190079 is a deficient number, since it is larger than the sum of its proper divisors (20310389905).

12531510190079 is an equidigital number, since it uses as much as digits as its factorization.

12531510190079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20310389904.

The product of its (nonzero) digits is 85050, while the sum is 44.

The spelling of 12531510190079 in words is "twelve trillion, five hundred thirty-one billion, five hundred ten million, one hundred ninety thousand, seventy-nine".