99858528797 has 2 divisors, whose sum is σ = 99858528798. Its totient is φ = 99858528796.

The previous prime is 99858528767. The next prime is 99858528811. The reversal of 99858528797 is 79782585899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98123056516 + 1735472281 = 313246^2 + 41659^2 .

It is a cyclic number.

It is not a de Polignac number, because 99858528797 - 2¹⁶ = 99858463261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99858528767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49929264398 + 49929264399.

It is an arithmetic number, because the mean of its divisors is an integer number (49929264399).

Almost surely, 2^99858528797 is an apocalyptic number.

It is an amenable number.

99858528797 is a deficient number, since it is larger than the sum of its proper divisors (1).

99858528797 is an equidigital number, since it uses as much as digits as its factorization.

99858528797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 914457600, while the sum is 77.

The spelling of 99858528797 in words is "ninety-nine billion, eight hundred fifty-eight million, five hundred twenty-eight thousand, seven hundred ninety-seven".