899429791091 has 8 divisors (see below), whose sum is σ = 980877670080. Its totient is φ = 819733479552.

The previous prime is 899429791079. The next prime is 899429791097. The reversal of 899429791091 is 190197924998.

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

It is a de Polignac number, because none of the positive numbers 2^k-899429791091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (899429791097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437890790 + ... + 437892843.

It is an arithmetic number, because the mean of its divisors is an integer number (122609708760).

Almost surely, 2^899429791091 is an apocalyptic number.

899429791091 is a deficient number, since it is larger than the sum of its proper divisors (81447878989).

899429791091 is a wasteful number, since it uses less digits than its factorization.

899429791091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875783725.

The product of its (nonzero) digits is 26453952, while the sum is 68.

The spelling of 899429791091 in words is "eight hundred ninety-nine billion, four hundred twenty-nine million, seven hundred ninety-one thousand, ninety-one".