938333192989 has 2 divisors, whose sum is σ = 938333192990. Its totient is φ = 938333192988.

The previous prime is 938333192921. The next prime is 938333193047. The reversal of 938333192989 is 989291333839.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 503184516025 + 435148676964 = 709355^2 + 659658^2 .

It is a cyclic number.

It is not a de Polignac number, because 938333192989 - 2¹⁵ = 938333160221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (938333192089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469166596494 + 469166596495.

It is an arithmetic number, because the mean of its divisors is an integer number (469166596495).

Almost surely, 2^938333192989 is an apocalyptic number.

It is an amenable number.

938333192989 is a deficient number, since it is larger than the sum of its proper divisors (1).

938333192989 is an equidigital number, since it uses as much as digits as its factorization.

938333192989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68024448, while the sum is 67.

The spelling of 938333192989 in words is "nine hundred thirty-eight billion, three hundred thirty-three million, one hundred ninety-two thousand, nine hundred eighty-nine".