900090019093 has 2 divisors, whose sum is σ = 900090019094. Its totient is φ = 900090019092.

The previous prime is 900090019061. The next prime is 900090019139. The reversal of 900090019093 is 390910090009.

900090019093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 569629448644 + 330460570449 = 754738^2 + 574857^2 .

It is a cyclic number.

It is not a de Polignac number, because 900090019093 - 2⁵ = 900090019061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (900090019013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450045009546 + 450045009547.

It is an arithmetic number, because the mean of its divisors is an integer number (450045009547).

Almost surely, 2^900090019093 is an apocalyptic number.

It is an amenable number.

900090019093 is a deficient number, since it is larger than the sum of its proper divisors (1).

900090019093 is an equidigital number, since it uses as much as digits as its factorization.

900090019093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19683, while the sum is 40.

The spelling of 900090019093 in words is "nine hundred billion, ninety million, nineteen thousand, ninety-three".