12400723602767 has 4 divisors (see below), whose sum is σ = 12400733508696. Its totient is φ = 12400713696840.

The previous prime is 12400723602763. The next prime is 12400723602797. The reversal of 12400723602767 is 76720632700421.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12400723602767 - 2² = 12400723602763 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 (12400723602763) 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, 2747984 + ... + 5687957.

It is an arithmetic number, because the mean of its divisors is an integer number (3100183377174).

Almost surely, 2^{12400723602767} is an apocalyptic number.

12400723602767 is a deficient number, since it is larger than the sum of its proper divisors (9905929).

12400723602767 is an equidigital number, since it uses as much as digits as its factorization.

12400723602767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9905928.

The product of its (nonzero) digits is 1185408, while the sum is 47.

The spelling of 12400723602767 in words is "twelve trillion, four hundred billion, seven hundred twenty-three million, six hundred two thousand, seven hundred sixty-seven".