864384876850 has 24 divisors (see below), whose sum is σ = 1753915496688. Its totient is φ = 314321773200.

The previous prime is 864384876833. The next prime is 864384876851. The reversal of 864384876850 is 58678483468.

It is a super-2 number, since 2×864384876850² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (864384876851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 785803884 + ... + 785804983.

It is an arithmetic number, because the mean of its divisors is an integer number (73079812362).

Almost surely, 2^864384876850 is an apocalyptic number.

864384876850 is an abundant number, since it is smaller than the sum of its proper divisors (889530619838).

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

864384876850 is a wasteful number, since it uses less digits than its factorization.

864384876850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571608890 (or 1571608885 counting only the distinct ones).

The product of its (nonzero) digits is 247726080, while the sum is 67.

The spelling of 864384876850 in words is "eight hundred sixty-four billion, three hundred eighty-four million, eight hundred seventy-six thousand, eight hundred fifty".