39523728653 has 2 divisors, whose sum is σ = 39523728654. Its totient is φ = 39523728652.

The previous prime is 39523728649. The next prime is 39523728707. The reversal of 39523728653 is 35682732593.

39523728653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21130401769 + 18393326884 = 145363^2 + 135622^2 .

It is a cyclic number.

It is not a de Polignac number, because 39523728653 - 2² = 39523728649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39523728595 and 39523728604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39523727653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19761864326 + 19761864327.

It is an arithmetic number, because the mean of its divisors is an integer number (19761864327).

Almost surely, 2^39523728653 is an apocalyptic number.

It is an amenable number.

39523728653 is a deficient number, since it is larger than the sum of its proper divisors (1).

39523728653 is an equidigital number, since it uses as much as digits as its factorization.

39523728653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8164800, while the sum is 53.

The spelling of 39523728653 in words is "thirty-nine billion, five hundred twenty-three million, seven hundred twenty-eight thousand, six hundred fifty-three".