1974168671617 has 8 divisors (see below), whose sum is σ = 1982790665856. Its totient is φ = 1965555129792.

The previous prime is 1974168671599. The next prime is 1974168671621. The reversal of 1974168671617 is 7161768614791.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1974168671617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1974168671627) 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, 1644733 + ... + 2579434.

It is an arithmetic number, because the mean of its divisors is an integer number (247848833232).

Almost surely, 2^{1974168671617} is an apocalyptic number.

It is an amenable number.

1974168671617 is a deficient number, since it is larger than the sum of its proper divisors (8621994239).

1974168671617 is a wasteful number, since it uses less digits than its factorization.

1974168671617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4226207.

The product of its digits is 21337344, while the sum is 64.

The spelling of 1974168671617 in words is "one trillion, nine hundred seventy-four billion, one hundred sixty-eight million, six hundred seventy-one thousand, six hundred seventeen".