8991404152 has 16 divisors (see below), whose sum is σ = 16861241160. Its totient is φ = 4495073184.

The previous prime is 8991404141. The next prime is 8991404239. The reversal of 8991404152 is 2514041998.

It is a junction number, because it is equal to n+sod(n) for n = 8991404099 and 8991404108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14803 + ... + 134914.

Almost surely, 2^8991404152 is an apocalyptic number.

It is an amenable number.

8991404152 is a deficient number, since it is larger than the sum of its proper divisors (7869837008).

8991404152 is a wasteful number, since it uses less digits than its factorization.

8991404152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157230 (or 157226 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 8991404152 is about 94823.0148856278. The cubic root of 8991404152 is about 2079.4213867637.

The spelling of 8991404152 in words is "eight billion, nine hundred ninety-one million, four hundred four thousand, one hundred fifty-two".