79143434198 has 4 divisors (see below), whose sum is σ = 118715151300. Its totient is φ = 39571717098.

The previous prime is 79143434191. The next prime is 79143434239. The reversal of 79143434198 is 89143434197.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79143434191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19785858548 + ... + 19785858551.

It is an arithmetic number, because the mean of its divisors is an integer number (29678787825).

Almost surely, 2^79143434198 is an apocalyptic number.

79143434198 is a deficient number, since it is larger than the sum of its proper divisors (39571717102).

79143434198 is a wasteful number, since it uses less digits than its factorization.

79143434198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39571717101.

The product of its digits is 2612736, while the sum is 53.

Subtracting 79143434198 from its reverse (89143434197), we obtain a palindrome (9999999999).

The spelling of 79143434198 in words is "seventy-nine billion, one hundred forty-three million, four hundred thirty-four thousand, one hundred ninety-eight".