39990412699 has 2 divisors, whose sum is σ = 39990412700. Its totient is φ = 39990412698.

The previous prime is 39990412691. The next prime is 39990412711. The reversal of 39990412699 is 99621409993.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39990412699 - 2³ = 39990412691 is a prime.

It is not a weakly prime, because it can be changed into another prime (39990412691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19995206349 + 19995206350.

It is an arithmetic number, because the mean of its divisors is an integer number (19995206350).

Almost surely, 2^39990412699 is an apocalyptic number.

39990412699 is a deficient number, since it is larger than the sum of its proper divisors (1).

39990412699 is an equidigital number, since it uses as much as digits as its factorization.

39990412699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8503056, while the sum is 61.

The spelling of 39990412699 in words is "thirty-nine billion, nine hundred ninety million, four hundred twelve thousand, six hundred ninety-nine".