12623767643761 has 4 divisors (see below), whose sum is σ = 12623775467632. Its totient is φ = 12623759819892.

The previous prime is 12623767643741. The next prime is 12623767643801. The reversal of 12623767643761 is 16734676732621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, 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 12623767643761 - 2²³ = 12623759255153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12623767643761.

It is not an unprimeable number, because it can be changed into a prime (12623767643741) 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, 499395 + ... + 5049448.

It is an arithmetic number, because the mean of its divisors is an integer number (3155943866908).

Almost surely, 2^{12623767643761} is an apocalyptic number.

It is an amenable number.

12623767643761 is a deficient number, since it is larger than the sum of its proper divisors (7823871).

12623767643761 is an equidigital number, since it uses as much as digits as its factorization.

12623767643761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7823870.

The product of its digits is 64012032, while the sum is 61.

The spelling of 12623767643761 in words is "twelve trillion, six hundred twenty-three billion, seven hundred sixty-seven million, six hundred forty-three thousand, seven hundred sixty-one".