500991296669 has 2 divisors, whose sum is σ = 500991296670. Its totient is φ = 500991296668.

The previous prime is 500991296629. The next prime is 500991296681. The reversal of 500991296669 is 966692199005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 500910062500 + 81234169 = 707750^2 + 9013^2 .

It is a cyclic number.

It is not a de Polignac number, because 500991296669 - 2²⁰ = 500990248093 is a prime.

It is a super-2 number, since 2×500991296669² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500991296629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250495648334 + 250495648335.

It is an arithmetic number, because the mean of its divisors is an integer number (250495648335).

Almost surely, 2^500991296669 is an apocalyptic number.

It is an amenable number.

500991296669 is a deficient number, since it is larger than the sum of its proper divisors (1).

500991296669 is an equidigital number, since it uses as much as digits as its factorization.

500991296669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14171760, while the sum is 62.

The spelling of 500991296669 in words is "five hundred billion, nine hundred ninety-one million, two hundred ninety-six thousand, six hundred sixty-nine".