438159475797 has 4 divisors (see below), whose sum is σ = 584212634400. Its totient is φ = 292106317196.

The previous prime is 438159475783. The next prime is 438159475801. The reversal of 438159475797 is 797574951834.

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 438159475797 - 2¹¹ = 438159473749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438159475757) 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, 73026579297 + ... + 73026579302.

It is an arithmetic number, because the mean of its divisors is an integer number (146053158600).

Almost surely, 2^438159475797 is an apocalyptic number.

It is an amenable number.

438159475797 is a deficient number, since it is larger than the sum of its proper divisors (146053158603).

438159475797 is a wasteful number, since it uses less digits than its factorization.

438159475797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146053158602.

The product of its digits is 266716800, while the sum is 69.

The spelling of 438159475797 in words is "four hundred thirty-eight billion, one hundred fifty-nine million, four hundred seventy-five thousand, seven hundred ninety-seven".