5188779809197 has 4 divisors (see below), whose sum is σ = 5414378931360. Its totient is φ = 4963180687036.

The previous prime is 5188779809159. The next prime is 5188779809231. The reversal of 5188779809197 is 7919089778815.

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 5188779809197 - 2¹⁵ = 5188779776429 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 (5188779809897) 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, 112799561047 + ... + 112799561092.

It is an arithmetic number, because the mean of its divisors is an integer number (1353594732840).

Almost surely, 2^{5188779809197} is an apocalyptic number.

It is an amenable number.

5188779809197 is a deficient number, since it is larger than the sum of its proper divisors (225599122163).

5188779809197 is a wasteful number, since it uses less digits than its factorization.

5188779809197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225599122162.

The product of its (nonzero) digits is 640120320, while the sum is 79.

The spelling of 5188779809197 in words is "five trillion, one hundred eighty-eight billion, seven hundred seventy-nine million, eight hundred nine thousand, one hundred ninety-seven".