99215276885 has 4 divisors (see below), whose sum is σ = 119058332268. Its totient is φ = 79372221504.

The previous prime is 99215276827. The next prime is 99215276983. The reversal of 99215276885 is 58867251299.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76880871076 + 22334405809 = 277274^2 + 149447^2 .

It is a cyclic number.

It is not a de Polignac number, because 99215276885 - 2¹⁶ = 99215211349 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, 9921527684 + ... + 9921527693.

It is an arithmetic number, because the mean of its divisors is an integer number (29764583067).

Almost surely, 2^99215276885 is an apocalyptic number.

It is an amenable number.

99215276885 is a deficient number, since it is larger than the sum of its proper divisors (19843055383).

99215276885 is a wasteful number, since it uses less digits than its factorization.

99215276885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19843055382.

The product of its digits is 21772800, while the sum is 62.

The spelling of 99215276885 in words is "ninety-nine billion, two hundred fifteen million, two hundred seventy-six thousand, eight hundred eighty-five".