19990035007 has 2 divisors, whose sum is σ = 19990035008. Its totient is φ = 19990035006.

The previous prime is 19990034993. The next prime is 19990035017. The reversal of 19990035007 is 70053009991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19990035007 - 2⁷ = 19990034879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19990035017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9995017503 + 9995017504.

It is an arithmetic number, because the mean of its divisors is an integer number (9995017504).

Almost surely, 2^19990035007 is an apocalyptic number.

19990035007 is a deficient number, since it is larger than the sum of its proper divisors (1).

19990035007 is an equidigital number, since it uses as much as digits as its factorization.

19990035007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76545, while the sum is 43.

The spelling of 19990035007 in words is "nineteen billion, nine hundred ninety million, thirty-five thousand, seven".