849449944947 has 8 divisors (see below), whose sum is σ = 1132605851344. Its totient is φ = 566297000928.

The previous prime is 849449944943. The next prime is 849449944961. The reversal of 849449944947 is 749449944948.

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

It is not a de Polignac number, because 849449944947 - 2² = 849449944943 is a prime.

It is a super-2 number, since 2×849449944947² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849449944943) 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, 48633 + ... + 1304325.

It is an arithmetic number, because the mean of its divisors is an integer number (141575731418).

Almost surely, 2^849449944947 is an apocalyptic number.

849449944947 is a deficient number, since it is larger than the sum of its proper divisors (283155906397).

849449944947 is a wasteful number, since it uses less digits than its factorization.

849449944947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481189.

The product of its digits is 1504935936, while the sum is 75.

Subtracting from 849449944947 its reverse (749449944948), we obtain a palindrome (99999999999).

The spelling of 849449944947 in words is "eight hundred forty-nine billion, four hundred forty-nine million, nine hundred forty-four thousand, nine hundred forty-seven".