126623677623 has 4 divisors (see below), whose sum is σ = 168831570168. Its totient is φ = 84415785080.

The previous prime is 126623677603. The next prime is 126623677657. The reversal of 126623677623 is 326776326621.

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 126623677623 - 2⁶ = 126623677559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126623677603) 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, 21103946268 + ... + 21103946273.

It is an arithmetic number, because the mean of its divisors is an integer number (42207892542).

Almost surely, 2^126623677623 is an apocalyptic number.

126623677623 is a deficient number, since it is larger than the sum of its proper divisors (42207892545).

126623677623 is an equidigital number, since it uses as much as digits as its factorization.

126623677623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42207892544.

The product of its digits is 4572288, while the sum is 51.

The spelling of 126623677623 in words is "one hundred twenty-six billion, six hundred twenty-three million, six hundred seventy-seven thousand, six hundred twenty-three".