987099611922 has 30 divisors (see below), whose sum is σ = 2211862651383. Its totient is φ = 329028988788.

The previous prime is 987099611881. The next prime is 987099611933. The reversal of 987099611922 is 229116990789.

987099611922 is a `hidden beast` number, since 9 + 8 + 7 + 0 + 9 + 9 + 611 + 9 + 2 + 2 = 666.

987099611922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 493549805961 + 493549805961 = 702531^2 + 702531^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=702531.

It is a self number, because there is not a number n which added to its sum of digits gives 987099611922.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 12606529 + ... + 12684587.

Almost surely, 2^987099611922 is an apocalyptic number.

987099611922 is an abundant number, since it is smaller than the sum of its proper divisors (1224763039461).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

987099611922 is an frugal number, since it uses more digits than its factorization.

987099611922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156132 (or 78064 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 63.

The spelling of 987099611922 in words is "nine hundred eighty-seven billion, ninety-nine million, six hundred eleven thousand, nine hundred twenty-two".