19590761089 has 3 divisors (see below), whose sum is σ = 19590901057. Its totient is φ = 19590621122.

The previous prime is 19590761051. The next prime is 19590761119. The reversal of 19590761089 is 98016709591.

The square root of 19590761089 is 139967.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 19590761089 - 2¹⁹ = 19590236801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19590761009) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 69984 + ... + 209950.

Almost surely, 2^19590761089 is an apocalyptic number.

19590761089 is the 139967-th square number.

19590761089 is the 69984-th centered octagonal number.

It is an amenable number.

19590761089 is a deficient number, since it is larger than the sum of its proper divisors (139968).

19590761089 is an frugal number, since it uses more digits than its factorization.

19590761089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279934 (or 139967 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 55.

The spelling of 19590761089 in words is "nineteen billion, five hundred ninety million, seven hundred sixty-one thousand, eighty-nine".