99649657774 has 8 divisors (see below), whose sum is σ = 149523232248. Its totient is φ = 49808580360.

The previous prime is 99649657769. The next prime is 99649657831. The reversal of 99649657774 is 47775694699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 99649657697 and 99649657706.

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, 8116597 + ... + 8128864.

It is an arithmetic number, because the mean of its divisors is an integer number (18690404031).

Almost surely, 2^99649657774 is an apocalyptic number.

99649657774 is a deficient number, since it is larger than the sum of its proper divisors (49873574474).

99649657774 is a wasteful number, since it uses less digits than its factorization.

99649657774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16248530.

The product of its digits is 720135360, while the sum is 73.

The spelling of 99649657774 in words is "ninety-nine billion, six hundred forty-nine million, six hundred fifty-seven thousand, seven hundred seventy-four".