2153866448 has 40 divisors (see below), whose sum is σ = 4499920320. Its totient is φ = 995362560.

The previous prime is 2153866447. The next prime is 2153866457. The reversal of 2153866448 is 8446683512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153866447) 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, 73940 + ... + 98867.

It is an arithmetic number, because the mean of its divisors is an integer number (112498008).

Almost surely, 2^2153866448 is an apocalyptic number.

It is an amenable number.

2153866448 is an abundant number, since it is smaller than the sum of its proper divisors (2346053872).

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

2153866448 is a wasteful number, since it uses less digits than its factorization.

2153866448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172875 (or 172869 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 47.

The square root of 2153866448 is about 46409.7667307217. The cubic root of 2153866448 is about 1291.4361043141.

The spelling of 2153866448 in words is "two billion, one hundred fifty-three million, eight hundred sixty-six thousand, four hundred forty-eight".