3909790490933 has 2 divisors, whose sum is σ = 3909790490934. Its totient is φ = 3909790490932.

The previous prime is 3909790490899. The next prime is 3909790490987. The reversal of 3909790490933 is 3390940979093.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3221856272209 + 687934218724 = 1794953^2 + 829418^2 .

It is a cyclic number.

It is not a de Polignac number, because 3909790490933 - 2¹⁴ = 3909790474549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3909790490933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3909790490833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1954895245466 + 1954895245467.

It is an arithmetic number, because the mean of its divisors is an integer number (1954895245467).

Almost surely, 2^{3909790490933} is an apocalyptic number.

It is an amenable number.

3909790490933 is a deficient number, since it is larger than the sum of its proper divisors (1).

3909790490933 is an equidigital number, since it uses as much as digits as its factorization.

3909790490933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44641044, while the sum is 65.

The spelling of 3909790490933 in words is "three trillion, nine hundred nine billion, seven hundred ninety million, four hundred ninety thousand, nine hundred thirty-three".