38742102389 has 2 divisors, whose sum is σ = 38742102390. Its totient is φ = 38742102388.

The previous prime is 38742102367. The next prime is 38742102449. The reversal of 38742102389 is 98320124783.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38349388900 + 392713489 = 195830^2 + 19817^2 .

It is a cyclic number.

It is not a de Polignac number, because 38742102389 - 2¹² = 38742098293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38742102989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19371051194 + 19371051195.

It is an arithmetic number, because the mean of its divisors is an integer number (19371051195).

Almost surely, 2^38742102389 is an apocalyptic number.

It is an amenable number.

38742102389 is a deficient number, since it is larger than the sum of its proper divisors (1).

38742102389 is an equidigital number, since it uses as much as digits as its factorization.

38742102389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 38742102389 in words is "thirty-eight billion, seven hundred forty-two million, one hundred two thousand, three hundred eighty-nine".