2123663726 has 8 divisors (see below), whose sum is σ = 3189843624. Its totient is φ = 1060382520.

The previous prime is 2123663713. The next prime is 2123663753. The reversal of 2123663726 is 6273663212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2123663726² = 9019895242256406152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2123663726.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722840 + ... + 725771.

It is an arithmetic number, because the mean of its divisors is an integer number (398730453).

Almost surely, 2^2123663726 is an apocalyptic number.

2123663726 is a deficient number, since it is larger than the sum of its proper divisors (1066179898).

2123663726 is a wasteful number, since it uses less digits than its factorization.

2123663726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449346.

The product of its digits is 108864, while the sum is 38.

The square root of 2123663726 is about 46083.2260806467. The cubic root of 2123663726 is about 1285.3712535879.

The spelling of 2123663726 in words is "two billion, one hundred twenty-three million, six hundred sixty-three thousand, seven hundred twenty-six".