2189074557 has 4 divisors (see below), whose sum is σ = 2918766080. Its totient is φ = 1459383036.

The previous prime is 2189074523. The next prime is 2189074597. The reversal of 2189074557 is 7554709812.

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 2189074557 - 2⁸ = 2189074301 is a prime.

It is a super-2 number, since 2×2189074557² = 9584094832209492498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189074507) 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, 364845757 + ... + 364845762.

It is an arithmetic number, because the mean of its divisors is an integer number (729691520).

Almost surely, 2^2189074557 is an apocalyptic number.

It is an amenable number.

2189074557 is a deficient number, since it is larger than the sum of its proper divisors (729691523).

2189074557 is an equidigital number, since it uses as much as digits as its factorization.

2189074557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729691522.

The product of its (nonzero) digits is 705600, while the sum is 48.

The square root of 2189074557 is about 46787.5470290974. The cubic root of 2189074557 is about 1298.4349127794.

The spelling of 2189074557 in words is "two billion, one hundred eighty-nine million, seventy-four thousand, five hundred fifty-seven".