849139365888 has 960 divisors, whose sum is σ = 3027577512960. Its totient is φ = 234101145600.

The previous prime is 849139365847. The next prime is 849139365947. The reversal of 849139365888 is 888563931948.

849139365888 is a `hidden beast` number, since 8 + 4 + 9 + 1 + 3 + 9 + 36 + 588 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 961652295 + ... + 961653177.

It is an arithmetic number, because the mean of its divisors is an integer number (3153726576).

Almost surely, 2^849139365888 is an apocalyptic number.

849139365888 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 849139365888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1513788756480).

849139365888 is an abundant number, since it is smaller than the sum of its proper divisors (2178438147072).

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

849139365888 is a wasteful number, since it uses less digits than its factorization.

849139365888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 947 counting only the distinct ones).

The product of its digits is 358318080, while the sum is 72.

The spelling of 849139365888 in words is "eight hundred forty-nine billion, one hundred thirty-nine million, three hundred sixty-five thousand, eight hundred eighty-eight".