9992869541 has 2 divisors, whose sum is σ = 9992869542. Its totient is φ = 9992869540.

The previous prime is 9992869531. The next prime is 9992869559. The reversal of 9992869541 is 1459682999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9786947041 + 205922500 = 98929^2 + 14350^2 .

It is a cyclic number.

It is not a de Polignac number, because 9992869541 - 2⁶ = 9992869477 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9992869531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4996434770 + 4996434771.

It is an arithmetic number, because the mean of its divisors is an integer number (4996434771).

Almost surely, 2^9992869541 is an apocalyptic number.

It is an amenable number.

9992869541 is a deficient number, since it is larger than the sum of its proper divisors (1).

9992869541 is an equidigital number, since it uses as much as digits as its factorization.

9992869541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12597120, while the sum is 62.

The square root of 9992869541 is about 99964.3413473024. The cubic root of 9992869541 is about 2153.9224979996.

The spelling of 9992869541 in words is "nine billion, nine hundred ninety-two million, eight hundred sixty-nine thousand, five hundred forty-one".