11826621723 has 12 divisors (see below), whose sum is σ = 18343331880. Its totient is φ = 6758069472.

The previous prime is 11826621707. The next prime is 11826621739. The reversal of 11826621723 is 32712662811.

It is an interprime number because it is at equal distance from previous prime (11826621707) and next prime (11826621739).

It is not a de Polignac number, because 11826621723 - 2⁴ = 11826621707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11826621743) 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 11 ways as a sum of consecutive naturals, for example, 40226458 + ... + 40226751.

It is an arithmetic number, because the mean of its divisors is an integer number (1528610990).

Almost surely, 2^11826621723 is an apocalyptic number.

11826621723 is a deficient number, since it is larger than the sum of its proper divisors (6516710157).

11826621723 is an equidigital number, since it uses as much as digits as its factorization.

11826621723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80453226 (or 80453219 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The spelling of 11826621723 in words is "eleven billion, eight hundred twenty-six million, six hundred twenty-one thousand, seven hundred twenty-three".