2872445648 has 20 divisors (see below), whose sum is σ = 5566535460. Its totient is φ = 1435920384.

The previous prime is 2872445633. The next prime is 2872445687. The reversal of 2872445648 is 8465442782.

It can be written as a sum of positive squares in 2 ways, for example, as 1837665424 + 1034780224 = 42868^2 + 32168^2 .

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2872445596 and 2872445605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72986 + ... + 105222.

It is an arithmetic number, because the mean of its divisors is an integer number (278326773).

Almost surely, 2^2872445648 is an apocalyptic number.

It is an amenable number.

2872445648 is a deficient number, since it is larger than the sum of its proper divisors (2694089812).

2872445648 is a wasteful number, since it uses less digits than its factorization.

2872445648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37814 (or 37808 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 50.

The square root of 2872445648 is about 53595.2017255276. The cubic root of 2872445648 is about 1421.5122499418.

The spelling of 2872445648 in words is "two billion, eight hundred seventy-two million, four hundred forty-five thousand, six hundred forty-eight".