2656790589 has 4 divisors (see below), whose sum is σ = 3542387456. Its totient is φ = 1771193724.

The previous prime is 2656790567. The next prime is 2656790603. The reversal of 2656790589 is 9850976562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2656790589 - 2¹³ = 2656782397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656720589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442798429 + ... + 442798434.

It is an arithmetic number, because the mean of its divisors is an integer number (885596864).

Almost surely, 2^2656790589 is an apocalyptic number.

It is an amenable number.

2656790589 is a deficient number, since it is larger than the sum of its proper divisors (885596867).

2656790589 is an equidigital number, since it uses as much as digits as its factorization.

2656790589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885596866.

The product of its (nonzero) digits is 8164800, while the sum is 57.

The square root of 2656790589 is about 51544.0645370541. The cubic root of 2656790589 is about 1385.0085085082.

The spelling of 2656790589 in words is "two billion, six hundred fifty-six million, seven hundred ninety thousand, five hundred eighty-nine".