10738389821 has 4 divisors (see below), whose sum is σ = 10792899612. Its totient is φ = 10683880032.

The previous prime is 10738389811. The next prime is 10738389829. The reversal of 10738389821 is 12898383701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5498222500 + 5240167321 = 74150^2 + 72389^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10738389821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10738389821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10738389829) 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, 27254600 + ... + 27254993.

It is an arithmetic number, because the mean of its divisors is an integer number (2698224903).

Almost surely, 2^10738389821 is an apocalyptic number.

It is an amenable number.

10738389821 is a deficient number, since it is larger than the sum of its proper divisors (54509791).

10738389821 is an equidigital number, since it uses as much as digits as its factorization.

10738389821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54509790.

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 10738389821 in words is "ten billion, seven hundred thirty-eight million, three hundred eighty-nine thousand, eight hundred twenty-one".