10938521839 has 4 divisors (see below), whose sum is σ = 12501167824. Its totient is φ = 9375875856.

The previous prime is 10938521813. The next prime is 10938521873. The reversal of 10938521839 is 93812583901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93812583901 = 127 ⋅738681763.

It is a cyclic number.

It is not a de Polignac number, because 10938521839 - 2¹³ = 10938513647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10938521792 and 10938521801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10938521809) 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, 781322982 + ... + 781322995.

It is an arithmetic number, because the mean of its divisors is an integer number (3125291956).

Almost surely, 2^10938521839 is an apocalyptic number.

10938521839 is a deficient number, since it is larger than the sum of its proper divisors (1562645985).

10938521839 is an equidigital number, since it uses as much as digits as its factorization.

10938521839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562645984.

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 10938521839 in words is "ten billion, nine hundred thirty-eight million, five hundred twenty-one thousand, eight hundred thirty-nine".