849579209012 has 12 divisors (see below), whose sum is σ = 1486783304160. Its totient is φ = 424783979256.

The previous prime is 849579208987. The next prime is 849579209093. The reversal of 849579209012 is 210902975948.

It is a super-2 number, since 2×849579209012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056848 + ... + 1678119.

It is an arithmetic number, because the mean of its divisors is an integer number (123898608680).

Almost surely, 2^849579209012 is an apocalyptic number.

It is an amenable number.

849579209012 is a deficient number, since it is larger than the sum of its proper divisors (637204095148).

849579209012 is a wasteful number, since it uses less digits than its factorization.

849579209012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812630 (or 2812628 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 849579209012 in words is "eight hundred forty-nine billion, five hundred seventy-nine million, two hundred nine thousand, twelve".