899749933149 has 16 divisors (see below), whose sum is σ = 1223012395584. Its totient is φ = 588173539200.

The previous prime is 899749933133. The next prime is 899749933177. The reversal of 899749933149 is 941339947998.

It is not a de Polignac number, because 899749933149 - 2⁴ = 899749933133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899749933129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1370407 + ... + 1917684.

It is an arithmetic number, because the mean of its divisors is an integer number (76438274724).

Almost surely, 2^899749933149 is an apocalyptic number.

It is an amenable number.

899749933149 is a deficient number, since it is larger than the sum of its proper divisors (323262462435).

899749933149 is a wasteful number, since it uses less digits than its factorization.

899749933149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3289868.

The product of its digits is 476171136, while the sum is 75.

The spelling of 899749933149 in words is "eight hundred ninety-nine billion, seven hundred forty-nine million, nine hundred thirty-three thousand, one hundred forty-nine".