2042521789 has 8 divisors (see below), whose sum is σ = 2546520768. Its totient is φ = 1591575360.

The previous prime is 2042521783. The next prime is 2042521829. The reversal of 2042521789 is 9871252402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2042521789 - 2⁵ = 2042521757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042521783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13263052 + ... + 13263205.

It is an arithmetic number, because the mean of its divisors is an integer number (318315096).

Almost surely, 2^2042521789 is an apocalyptic number.

It is an amenable number.

2042521789 is a deficient number, since it is larger than the sum of its proper divisors (503998979).

2042521789 is a wasteful number, since it uses less digits than its factorization.

2042521789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26526275.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 2042521789 is about 45194.2672138846. The cubic root of 2042521789 is about 1268.7875234472.

The spelling of 2042521789 in words is "two billion, forty-two million, five hundred twenty-one thousand, seven hundred eighty-nine".