849791477529 has 10 divisors (see below), whose sum is σ = 1269441590010. Its totient is φ = 566527651632.

The previous prime is 849791477519. The next prime is 849791477537. The reversal of 849791477529 is 925774197948.

849791477529 is a `hidden beast` number, since 8 + 4 + 9 + 7 + 91 + 4 + 7 + 7 + 529 = 666.

It can be written as a sum of positive squares in only one way, i.e., 826853769225 + 22937708304 = 909315^2 + 151452^2 .

It is not a de Polignac number, because 849791477529 - 2⁸ = 849791477273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (849791477519) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5245626324 + ... + 5245626485.

It is an arithmetic number, because the mean of its divisors is an integer number (126944159001).

Almost surely, 2^849791477529 is an apocalyptic number.

It is an amenable number.

849791477529 is a deficient number, since it is larger than the sum of its proper divisors (419650112481).

849791477529 is a wasteful number, since it uses less digits than its factorization.

849791477529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10491252821 (or 10491252812 counting only the distinct ones).

The product of its digits is 320060160, while the sum is 72.

The spelling of 849791477529 in words is "eight hundred forty-nine billion, seven hundred ninety-one million, four hundred seventy-seven thousand, five hundred twenty-nine".