42199173689 has 4 divisors (see below), whose sum is σ = 42793528320. Its totient is φ = 41604819060.

The previous prime is 42199173637. The next prime is 42199173697. The reversal of 42199173689 is 98637199124.

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 a cyclic number.

It is not a de Polignac number, because 42199173689 - 2¹⁶ = 42199108153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42199173889) 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, 297177209 + ... + 297177350.

It is an arithmetic number, because the mean of its divisors is an integer number (10698382080).

Almost surely, 2^42199173689 is an apocalyptic number.

It is an amenable number.

42199173689 is a deficient number, since it is larger than the sum of its proper divisors (594354631).

42199173689 is an equidigital number, since it uses as much as digits as its factorization.

42199173689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594354630.

The product of its digits is 5878656, while the sum is 59.

The spelling of 42199173689 in words is "forty-two billion, one hundred ninety-nine million, one hundred seventy-three thousand, six hundred eighty-nine".