2865172032 has 168 divisors, whose sum is σ = 8737092000. Its totient is φ = 895131648.

The previous prime is 2865172021. The next prime is 2865172033. The reversal of 2865172032 is 2302715682.

It is a super-3 number, since 3×2865172032³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2865172033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1060219 + ... + 1062917.

It is an arithmetic number, because the mean of its divisors is an integer number (52006500).

Almost surely, 2^2865172032 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 2865172032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4368546000).

2865172032 is an abundant number, since it is smaller than the sum of its proper divisors (5871919968).

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

2865172032 is a wasteful number, since it uses less digits than its factorization.

2865172032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833 (or 2820 counting only the distinct ones).

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

The square root of 2865172032 is about 53527.3017440633. The cubic root of 2865172032 is about 1420.3113831453.

The spelling of 2865172032 in words is "two billion, eight hundred sixty-five million, one hundred seventy-two thousand, thirty-two".