538980162197 has 4 divisors (see below), whose sum is σ = 539535240576. Its totient is φ = 538425083820.

The previous prime is 538980162163. The next prime is 538980162209. The reversal of 538980162197 is 791261089835.

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 a de Polignac number, because none of the positive numbers 2^k-538980162197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538980102197) 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, 277537733 + ... + 277539674.

It is an arithmetic number, because the mean of its divisors is an integer number (134883810144).

Almost surely, 2^538980162197 is an apocalyptic number.

It is an amenable number.

538980162197 is a deficient number, since it is larger than the sum of its proper divisors (555078379).

538980162197 is an equidigital number, since it uses as much as digits as its factorization.

538980162197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555078378.

The product of its (nonzero) digits is 6531840, while the sum is 59.

The spelling of 538980162197 in words is "five hundred thirty-eight billion, nine hundred eighty million, one hundred sixty-two thousand, one hundred ninety-seven".