12508507767 has 16 divisors (see below), whose sum is σ = 19229264640. Its totient is φ = 7084463232.

The previous prime is 12508507763. The next prime is 12508507799. The reversal of 12508507767 is 76770580521.

It is a happy number.

It is not a de Polignac number, because 12508507767 - 2² = 12508507763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12508507763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2633217 + ... + 2637962.

It is an arithmetic number, because the mean of its divisors is an integer number (1201829040).

Almost surely, 2^12508507767 is an apocalyptic number.

12508507767 is a deficient number, since it is larger than the sum of its proper divisors (6720756873).

12508507767 is a wasteful number, since it uses less digits than its factorization.

12508507767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5271302.

The product of its (nonzero) digits is 823200, while the sum is 48.

The spelling of 12508507767 in words is "twelve billion, five hundred eight million, five hundred seven thousand, seven hundred sixty-seven".