934539899021 has 2 divisors, whose sum is σ = 934539899022. Its totient is φ = 934539899020.

The previous prime is 934539898909. The next prime is 934539899081. The reversal of 934539899021 is 120998935439.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 539042298025 + 395497600996 = 734195^2 + 628886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-934539899021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (934539899081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 467269949510 + 467269949511.

It is an arithmetic number, because the mean of its divisors is an integer number (467269949511).

Almost surely, 2^934539899021 is an apocalyptic number.

It is an amenable number.

934539899021 is a deficient number, since it is larger than the sum of its proper divisors (1).

934539899021 is an equidigital number, since it uses as much as digits as its factorization.

934539899021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18895680, while the sum is 62.

The spelling of 934539899021 in words is "nine hundred thirty-four billion, five hundred thirty-nine million, eight hundred ninety-nine thousand, twenty-one".