2171854752 has 48 divisors (see below), whose sum is σ = 5703530112. Its totient is φ = 723645440.

The previous prime is 2171854721. The next prime is 2171854759. The reversal of 2171854752 is 2574581712.

2171854752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2171854759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407368 + ... + 412664.

It is an arithmetic number, because the mean of its divisors is an integer number (118823544).

Almost surely, 2^2171854752 is an apocalyptic number.

It is an amenable number.

2171854752 is an abundant number, since it is smaller than the sum of its proper divisors (3531675360).

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

2171854752 is a wasteful number, since it uses less digits than its factorization.

2171854752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9581 (or 9573 counting only the distinct ones).

The product of its digits is 156800, while the sum is 42.

The square root of 2171854752 is about 46603.1624677983. The cubic root of 2171854752 is about 1295.0213424030.

The spelling of 2171854752 in words is "two billion, one hundred seventy-one million, eight hundred fifty-four thousand, seven hundred fifty-two".