849615399881472 has 576 divisors, whose sum is σ = 2792363395046400. Its totient is φ = 223825708449792.

The previous prime is 849615399881471. The next prime is 849615399881473. The reversal of 849615399881472 is 274188993516948.

It is an interprime number because it is at equal distance from previous prime (849615399881471) and next prime (849615399881473).

It is a Harshad number since it is a multiple of its sum of digits (84).

It is not an unprimeable number, because it can be changed into a prime (849615399881471) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 993643443 + ... + 994498125.

It is an arithmetic number, because the mean of its divisors is an integer number (4847853116400).

Almost surely, 2^{849615399881472} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 849615399881472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1396181697523200).

849615399881472 is an abundant number, since it is smaller than the sum of its proper divisors (1942747995164928).

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

849615399881472 is a wasteful number, since it uses less digits than its factorization.

849615399881472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854948 (or 854934 counting only the distinct ones).

The product of its digits is 7524679680, while the sum is 84.

The spelling of 849615399881472 in words is "eight hundred forty-nine trillion, six hundred fifteen billion, three hundred ninety-nine million, eight hundred eighty-one thousand, four hundred seventy-two".