99868892965 has 4 divisors (see below), whose sum is σ = 119842671564. Its totient is φ = 79895114368.

The previous prime is 99868892957. The next prime is 99868893001. The reversal of 99868892965 is 56929886899.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56929886899 = 4259 ⋅13366961.

It can be written as a sum of positive squares in 2 ways, for example, as 59965234884 + 39903658081 = 244878^2 + 199759^2 .

It is a cyclic number.

It is not a de Polignac number, because 99868892965 - 2³ = 99868892957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9986889292 + ... + 9986889301.

It is an arithmetic number, because the mean of its divisors is an integer number (29960667891).

Almost surely, 2^99868892965 is an apocalyptic number.

It is an amenable number.

99868892965 is a deficient number, since it is larger than the sum of its proper divisors (19973778599).

99868892965 is a wasteful number, since it uses less digits than its factorization.

99868892965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19973778598.

The product of its digits is 1209323520, while the sum is 79.

The spelling of 99868892965 in words is "ninety-nine billion, eight hundred sixty-eight million, eight hundred ninety-two thousand, nine hundred sixty-five".