2072528989 has 8 divisors (see below), whose sum is σ = 2149621848. Its totient is φ = 1996545600.

The previous prime is 2072528981. The next prime is 2072528999. The reversal of 2072528989 is 9898252702.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1545826489 + 526702500 = 39317^2 + 22950^2 .

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 2072528989 - 2³ = 2072528981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2072528981) 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, 273562 + ... + 281035.

It is an arithmetic number, because the mean of its divisors is an integer number (268702731).

Almost surely, 2^2072528989 is an apocalyptic number.

It is an amenable number.

2072528989 is a deficient number, since it is larger than the sum of its proper divisors (77092859).

2072528989 is a wasteful number, since it uses less digits than its factorization.

2072528989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554735.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The square root of 2072528989 is about 45525.0369467176. The cubic root of 2072528989 is about 1274.9707006467.

The spelling of 2072528989 in words is "two billion, seventy-two million, five hundred twenty-eight thousand, nine hundred eighty-nine".