11421725629 has 4 divisors (see below), whose sum is σ = 11427013180. Its totient is φ = 11416438080.

The previous prime is 11421725597. The next prime is 11421725671. The reversal of 11421725629 is 92652712411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92652712411 = 7 ⋅13236101773.

It can be written as a sum of positive squares in 2 ways, for example, as 6678648729 + 4743076900 = 81723^2 + 68870^2 .

It is a cyclic number.

It is not a de Polignac number, because 11421725629 - 2⁵ = 11421725597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11421725591 and 11421725600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421795629) 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 3 ways as a sum of consecutive naturals, for example, 2640534 + ... + 2644855.

It is an arithmetic number, because the mean of its divisors is an integer number (2856753295).

Almost surely, 2^11421725629 is an apocalyptic number.

It is an amenable number.

11421725629 is a deficient number, since it is larger than the sum of its proper divisors (5287551).

11421725629 is an equidigital number, since it uses as much as digits as its factorization.

11421725629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287550.

The product of its digits is 60480, while the sum is 40.

The spelling of 11421725629 in words is "eleven billion, four hundred twenty-one million, seven hundred twenty-five thousand, six hundred twenty-nine".