42319128697 has 4 divisors (see below), whose sum is σ = 44546451280. Its totient is φ = 40091806116.

The previous prime is 42319128661. The next prime is 42319128703. The reversal of 42319128697 is 79682191324.

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 42319128697 - 2⁷ = 42319128569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42319128647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1113661263 + ... + 1113661300.

It is an arithmetic number, because the mean of its divisors is an integer number (11136612820).

Almost surely, 2^42319128697 is an apocalyptic number.

It is an amenable number.

42319128697 is a deficient number, since it is larger than the sum of its proper divisors (2227322583).

42319128697 is a wasteful number, since it uses less digits than its factorization.

42319128697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227322582.

The product of its digits is 1306368, while the sum is 52.

The spelling of 42319128697 in words is "forty-two billion, three hundred nineteen million, one hundred twenty-eight thousand, six hundred ninety-seven".