2649728433 has 16 divisors (see below), whose sum is σ = 3864231936. Its totient is φ = 1601695440.

The previous prime is 2649728401. The next prime is 2649728453. The reversal of 2649728433 is 3348279462.

It is not a de Polignac number, because 2649728433 - 2⁵ = 2649728401 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2649728453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92185 + ... + 117462.

It is an arithmetic number, because the mean of its divisors is an integer number (241514496).

Almost surely, 2^2649728433 is an apocalyptic number.

It is an amenable number.

2649728433 is a deficient number, since it is larger than the sum of its proper divisors (1214503503).

2649728433 is a wasteful number, since it uses less digits than its factorization.

2649728433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210044.

The product of its digits is 1741824, while the sum is 48.

The square root of 2649728433 is about 51475.5129454773. The cubic root of 2649728433 is about 1383.7802313524.

The spelling of 2649728433 in words is "two billion, six hundred forty-nine million, seven hundred twenty-eight thousand, four hundred thirty-three".