38239615849 has 2 divisors, whose sum is σ = 38239615850. Its totient is φ = 38239615848.

The previous prime is 38239615823. The next prime is 38239615891. The reversal of 38239615849 is 94851693283.

38239615849 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., 34061286249 + 4178329600 = 184557^2 + 64640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38239615849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38239615793 and 38239615802.

It is not a weakly prime, because it can be changed into another prime (38239615649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19119807924 + 19119807925.

It is an arithmetic number, because the mean of its divisors is an integer number (19119807925).

Almost surely, 2^38239615849 is an apocalyptic number.

It is an amenable number.

38239615849 is a deficient number, since it is larger than the sum of its proper divisors (1).

38239615849 is an equidigital number, since it uses as much as digits as its factorization.

38239615849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11197440, while the sum is 58.

The spelling of 38239615849 in words is "thirty-eight billion, two hundred thirty-nine million, six hundred fifteen thousand, eight hundred forty-nine".