74196198979 has 8 divisors (see below), whose sum is σ = 85221766400. Its totient is φ = 63277159176.

The previous prime is 74196198961. The next prime is 74196198997. The reversal of 74196198979 is 97989169147.

It is an interprime number because it is at equal distance from previous prime (74196198961) and next prime (74196198997).

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

It is not a de Polignac number, because 74196198979 - 2¹¹ = 74196196931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74196198379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26630409 + ... + 26633194.

It is an arithmetic number, because the mean of its divisors is an integer number (10652720800).

Almost surely, 2^74196198979 is an apocalyptic number.

74196198979 is a deficient number, since it is larger than the sum of its proper divisors (11025567421).

74196198979 is a wasteful number, since it uses less digits than its factorization.

74196198979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53263809.

The product of its digits is 61725888, while the sum is 70.

The spelling of 74196198979 in words is "seventy-four billion, one hundred ninety-six million, one hundred ninety-eight thousand, nine hundred seventy-nine".