172784872848 has 160 divisors (see below), whose sum is σ = 538721519616. Its totient is φ = 46651613184.

The previous prime is 172784872837. The next prime is 172784872859. The reversal of 172784872848 is 848278487271.

172784872848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (172784872837) and next prime (172784872859).

It is a super-2 number, since 2×172784872848² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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 31 ways as a sum of consecutive naturals, for example, 506736 + ... + 776112.

Almost surely, 2^172784872848 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 172784872848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269360759808).

172784872848 is an abundant number, since it is smaller than the sum of its proper divisors (365936646768).

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

172784872848 is a wasteful number, since it uses less digits than its factorization.

172784872848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269501 (or 269495 counting only the distinct ones).

The product of its digits is 89915392, while the sum is 66.

The spelling of 172784872848 in words is "one hundred seventy-two billion, seven hundred eighty-four million, eight hundred seventy-two thousand, eight hundred forty-eight".