916209820529 has 2 divisors, whose sum is σ = 916209820530. Its totient is φ = 916209820528.

The previous prime is 916209820483. The next prime is 916209820553. The reversal of 916209820529 is 925028902619.

916209820529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 821316250225 + 94893570304 = 906265^2 + 308048^2 .

It is a cyclic number.

It is not a de Polignac number, because 916209820529 - 2³⁶ = 847490343793 is a prime.

It is not a weakly prime, because it can be changed into another prime (916209820429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458104910264 + 458104910265.

It is an arithmetic number, because the mean of its divisors is an integer number (458104910265).

Almost surely, 2^916209820529 is an apocalyptic number.

It is an amenable number.

916209820529 is a deficient number, since it is larger than the sum of its proper divisors (1).

916209820529 is an equidigital number, since it uses as much as digits as its factorization.

916209820529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 53.

The spelling of 916209820529 in words is "nine hundred sixteen billion, two hundred nine million, eight hundred twenty thousand, five hundred twenty-nine".