872136450 has 48 divisors (see below), whose sum is σ = 2403224160. Its totient is φ = 232569360.

The previous prime is 872136403. The next prime is 872136469. The reversal of 872136450 is 54631278.

872136450 is a `hidden beast` number, since 8 + 7 + 2 + 1 + 3 + 645 + 0 = 666.

It is a super-3 number, since 3×872136450³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321664 + ... + 324363.

It is an arithmetic number, because the mean of its divisors is an integer number (50067170).

Almost surely, 2^872136450 is an apocalyptic number.

872136450 is an abundant number, since it is smaller than the sum of its proper divisors (1531087710).

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

872136450 is a wasteful number, since it uses less digits than its factorization.

872136450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646048 (or 646037 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 872136450 is about 29531.9564201223. The cubic root of 872136450 is about 955.4210655672.

The spelling of 872136450 in words is "eight hundred seventy-two million, one hundred thirty-six thousand, four hundred fifty".