2439078561 has 40 divisors (see below), whose sum is σ = 3762468864. Its totient is φ = 1573629120.

The previous prime is 2439078559. The next prime is 2439078581. The reversal of 2439078561 is 1658709342.

2439078561 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2439078561 - 2¹ = 2439078559 is a prime.

2439078561 is strictly pandigital in base 10.

It is not an unprimeable number, because it can be changed into a prime (2439078581) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 418876 + ... + 424658.

It is a 1-persistent number, because it is pandigital, but 2⋅2439078561 = 4878157122 is not.

Almost surely, 2^2439078561 is an apocalyptic number.

It is an amenable number.

2439078561 is a deficient number, since it is larger than the sum of its proper divisors (1323390303).

2439078561 is a wasteful number, since it uses less digits than its factorization.

2439078561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5963 (or 5954 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2439078561 is about 49387.0282665398. The cubic root of 2439078561 is about 1346.0936109953.

The spelling of 2439078561 in words is "two billion, four hundred thirty-nine million, seventy-eight thousand, five hundred sixty-one".