849609408396 has 24 divisors (see below), whose sum is σ = 2265625089280. Its totient is φ = 242745545232.

The previous prime is 849609408377. The next prime is 849609408497. The reversal of 849609408396 is 693804906948.

It is a super-2 number, since 2×849609408396² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5057198776 + ... + 5057198943.

Almost surely, 2^849609408396 is an apocalyptic number.

It is an amenable number.

849609408396 is an abundant number, since it is smaller than the sum of its proper divisors (1416015680884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

849609408396 is a wasteful number, since it uses less digits than its factorization.

849609408396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10114397733 (or 10114397731 counting only the distinct ones).

The product of its (nonzero) digits is 80621568, while the sum is 66.

The spelling of 849609408396 in words is "eight hundred forty-nine billion, six hundred nine million, four hundred eight thousand, three hundred ninety-six".