39303999989 has 2 divisors, whose sum is σ = 39303999990. Its totient is φ = 39303999988.

The previous prime is 39303999979. The next prime is 39304000003. The reversal of 39303999989 is 98999930393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24670984900 + 14633015089 = 157070^2 + 120967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39303999989 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39303999919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19651999994 + 19651999995.

It is an arithmetic number, because the mean of its divisors is an integer number (19651999995).

Almost surely, 2^39303999989 is an apocalyptic number.

It is an amenable number.

39303999989 is a deficient number, since it is larger than the sum of its proper divisors (1).

39303999989 is an equidigital number, since it uses as much as digits as its factorization.

39303999989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 114791256, while the sum is 71.

The spelling of 39303999989 in words is "thirty-nine billion, three hundred three million, nine hundred ninety-nine thousand, nine hundred eighty-nine".