9990526771079 has 2 divisors, whose sum is σ = 9990526771080. Its totient is φ = 9990526771078.

The previous prime is 9990526771067. The next prime is 9990526771091. The reversal of 9990526771079 is 9701776250999.

9990526771079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (9990526771067) and next prime (9990526771091).

It is a cyclic number.

It is not a de Polignac number, because 9990526771079 - 2²⁰ = 9990525722503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9990526771679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4995263385539 + 4995263385540.

It is an arithmetic number, because the mean of its divisors is an integer number (4995263385540).

Almost surely, 2^{9990526771079} is an apocalyptic number.

9990526771079 is a deficient number, since it is larger than the sum of its proper divisors (1).

9990526771079 is an equidigital number, since it uses as much as digits as its factorization.

9990526771079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135025380, while the sum is 71.

The spelling of 9990526771079 in words is "nine trillion, nine hundred ninety billion, five hundred twenty-six million, seven hundred seventy-one thousand, seventy-nine".