2172848538 has 16 divisors (see below), whose sum is σ = 4966511040. Its totient is φ = 620813856.

The previous prime is 2172848537. The next prime is 2172848539. The reversal of 2172848538 is 8358482712.

It is an interprime number because it is at equal distance from previous prime (2172848537) and next prime (2172848539).

It is not an unprimeable number, because it can be changed into a prime (2172848533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25867203 + ... + 25867286.

It is an arithmetic number, because the mean of its divisors is an integer number (310406940).

Almost surely, 2^2172848538 is an apocalyptic number.

2172848538 is an abundant number, since it is smaller than the sum of its proper divisors (2793662502).

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

2172848538 is a wasteful number, since it uses less digits than its factorization.

2172848538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51734501.

The product of its digits is 860160, while the sum is 48.

The square root of 2172848538 is about 46613.8234647191. The cubic root of 2172848538 is about 1295.2188353267.

The spelling of 2172848538 in words is "two billion, one hundred seventy-two million, eight hundred forty-eight thousand, five hundred thirty-eight".