2148728859 has 12 divisors (see below), whose sum is σ = 3126050200. Its totient is φ = 1422179424.

The previous prime is 2148728833. The next prime is 2148728863. The reversal of 2148728859 is 9588278412.

It is not a de Polignac number, because 2148728859 - 2⁷ = 2148728731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2148728819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 857554 + ... + 860055.

Almost surely, 2^2148728859 is an apocalyptic number.

2148728859 is a deficient number, since it is larger than the sum of its proper divisors (977321341).

2148728859 is a wasteful number, since it uses less digits than its factorization.

2148728859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717754 (or 1717751 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 54.

The square root of 2148728859 is about 46354.3833849616. The cubic root of 2148728859 is about 1290.4084716916.

The spelling of 2148728859 in words is "two billion, one hundred forty-eight million, seven hundred twenty-eight thousand, eight hundred fifty-nine".