2789015545 has 16 divisors (see below), whose sum is σ = 3377582208. Its totient is φ = 2210757120.

The previous prime is 2789015543. The next prime is 2789015549. The reversal of 2789015545 is 5455109872.

It is not a de Polignac number, because 2789015545 - 2¹ = 2789015543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2789015495 and 2789015504.

It is not an unprimeable number, because it can be changed into a prime (2789015543) 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, 473257 + ... + 479113.

It is an arithmetic number, because the mean of its divisors is an integer number (211098888).

Almost surely, 2^2789015545 is an apocalyptic number.

It is an amenable number.

2789015545 is a deficient number, since it is larger than the sum of its proper divisors (588566663).

2789015545 is a wasteful number, since it uses less digits than its factorization.

2789015545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6720.

The product of its (nonzero) digits is 504000, while the sum is 46.

The square root of 2789015545 is about 52811.1308816617. The cubic root of 2789015545 is about 1407.6142182001.

The spelling of 2789015545 in words is "two billion, seven hundred eighty-nine million, fifteen thousand, five hundred forty-five".