1679971437191 has 8 divisors (see below), whose sum is σ = 1683465602784. Its totient is φ = 1676479727520.

The previous prime is 1679971437181. The next prime is 1679971437229. The reversal of 1679971437191 is 1917341799761.

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-1679971437191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679971437101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758726 + ... + 1983836.

It is an arithmetic number, because the mean of its divisors is an integer number (210433200348).

Almost surely, 2^{1679971437191} is an apocalyptic number.

1679971437191 is a deficient number, since it is larger than the sum of its proper divisors (3494165593).

1679971437191 is a wasteful number, since it uses less digits than its factorization.

1679971437191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227961.

The product of its digits is 18003384, while the sum is 65.

The spelling of 1679971437191 in words is "one trillion, six hundred seventy-nine billion, nine hundred seventy-one million, four hundred thirty-seven thousand, one hundred ninety-one".