10444523621 has 4 divisors (see below), whose sum is σ = 11936598432. Its totient is φ = 8952448812.

The previous prime is 10444523587. The next prime is 10444523653. The reversal of 10444523621 is 12632544401.

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 an emirpimes, since its reverse is a distinct semiprime: 12632544401 = 17107 ⋅738443.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10444523621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10444523821) 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, 746037395 + ... + 746037408.

It is an arithmetic number, because the mean of its divisors is an integer number (2984149608).

Almost surely, 2^10444523621 is an apocalyptic number.

It is an amenable number.

10444523621 is a deficient number, since it is larger than the sum of its proper divisors (1492074811).

10444523621 is an equidigital number, since it uses as much as digits as its factorization.

10444523621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492074810.

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 10444523621 in words is "ten billion, four hundred forty-four million, five hundred twenty-three thousand, six hundred twenty-one".