1679567961685 has 8 divisors (see below), whose sum is σ = 2017082420640. Its totient is φ = 1342587124944.

The previous prime is 1679567961679. The next prime is 1679567961689. The reversal of 1679567961685 is 5861697659761.

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

It is a cyclic number.

It is not a de Polignac number, because 1679567961685 - 2²¹ = 1679565864533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679567961689) 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, 133398627 + ... + 133411216.

It is an arithmetic number, because the mean of its divisors is an integer number (252135302580).

Almost surely, 2^{1679567961685} is an apocalyptic number.

It is an amenable number.

1679567961685 is a deficient number, since it is larger than the sum of its proper divisors (337514458955).

1679567961685 is a wasteful number, since it uses less digits than its factorization.

1679567961685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266811107.

The product of its digits is 1028764800, while the sum is 76.

The spelling of 1679567961685 in words is "one trillion, six hundred seventy-nine billion, five hundred sixty-seven million, nine hundred sixty-one thousand, six hundred eighty-five".