7945545889198 has 8 divisors (see below), whose sum is σ = 11918354285880. Its totient is φ = 3972761127240.

The previous prime is 7945545889189. The next prime is 7945545889271. The reversal of 7945545889198 is 8919885455497.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5042853 + ... + 6428176.

It is an arithmetic number, because the mean of its divisors is an integer number (1489794285735).

Almost surely, 2^{7945545889198} is an apocalyptic number.

7945545889198 is a deficient number, since it is larger than the sum of its proper divisors (3972808396682).

7945545889198 is a wasteful number, since it uses less digits than its factorization.

7945545889198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11817362.

The product of its digits is 5225472000, while the sum is 82.

The spelling of 7945545889198 in words is "seven trillion, nine hundred forty-five billion, five hundred forty-five million, eight hundred eighty-nine thousand, one hundred ninety-eight".