74217131606 has 8 divisors (see below), whose sum is σ = 111518637960. Its totient is φ = 37044252288.

The previous prime is 74217131603. The next prime is 74217131627. The reversal of 74217131606 is 60613171247.

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

It is a self number, because there is not a number n which added to its sum of digits gives 74217131606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74217131603) 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, 32155316 + ... + 32157623.

It is an arithmetic number, because the mean of its divisors is an integer number (13939829745).

Almost surely, 2^74217131606 is an apocalyptic number.

74217131606 is a deficient number, since it is larger than the sum of its proper divisors (37301506354).

74217131606 is a wasteful number, since it uses less digits than its factorization.

74217131606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64313518.

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 74217131606 in words is "seventy-four billion, two hundred seventeen million, one hundred thirty-one thousand, six hundred six".