10421925938 has 18 divisors (see below), whose sum is σ = 16075058013. Its totient is φ = 5067527400.

The previous prime is 10421925931. The next prime is 10421925971. The reversal of 10421925938 is 83952912401.

10421925938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8408339809 + 2013586129 = 91697^2 + 44873^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=72187.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10421925931) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 5340863 + ... + 5342813.

Almost surely, 2^10421925938 is an apocalyptic number.

10421925938 is a deficient number, since it is larger than the sum of its proper divisors (5653132075).

10421925938 is an frugal number, since it uses more digits than its factorization.

10421925938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978 (or 1990 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 10421925938 in words is "ten billion, four hundred twenty-one million, nine hundred twenty-five thousand, nine hundred thirty-eight".