10645442421 has 8 divisors (see below), whose sum is σ = 14194437600. Its totient is φ = 7096704432.

The previous prime is 10645442411. The next prime is 10645442443. The reversal of 10645442421 is 12424454601.

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

It is not a de Polignac number, because 10645442421 - 2⁹ = 10645441909 is a prime.

It is a super-2 number, since 2×10645442421² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10645442411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76051 + ... + 164543.

It is an arithmetic number, because the mean of its divisors is an integer number (1774304700).

Almost surely, 2^10645442421 is an apocalyptic number.

It is an amenable number.

10645442421 is a deficient number, since it is larger than the sum of its proper divisors (3548995179).

10645442421 is an equidigital number, since it uses as much as digits as its factorization.

10645442421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128595.

The product of its (nonzero) digits is 30720, while the sum is 33.

The spelling of 10645442421 in words is "ten billion, six hundred forty-five million, four hundred forty-two thousand, four hundred twenty-one".