39985969003 has 2 divisors, whose sum is σ = 39985969004. Its totient is φ = 39985969002.

The previous prime is 39985968989. The next prime is 39985969007. The reversal of 39985969003 is 30096958993.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39985969003 is a prime.

It is not a weakly prime, because it can be changed into another prime (39985969007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19992984501 + 19992984502.

It is an arithmetic number, because the mean of its divisors is an integer number (19992984502).

Almost surely, 2^39985969003 is an apocalyptic number.

39985969003 is a deficient number, since it is larger than the sum of its proper divisors (1).

39985969003 is an equidigital number, since it uses as much as digits as its factorization.

39985969003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14171760, while the sum is 61.

The spelling of 39985969003 in words is "thirty-nine billion, nine hundred eighty-five million, nine hundred sixty-nine thousand, three".