1691679692746 has 16 divisors (see below), whose sum is σ = 2580979595040. Its totient is φ = 831407932080.

The previous prime is 1691679692741. The next prime is 1691679692753. The reversal of 1691679692746 is 6472969761961.

It is not an unprimeable number, because it can be changed into a prime (1691679692741) 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, 13630716 + ... + 13754263.

It is an arithmetic number, because the mean of its divisors is an integer number (161311224690).

Almost surely, 2^{1691679692746} is an apocalyptic number.

1691679692746 is a deficient number, since it is larger than the sum of its proper divisors (889299902294).

1691679692746 is a wasteful number, since it uses less digits than its factorization.

1691679692746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27385509.

The product of its digits is 370355328, while the sum is 73.

The spelling of 1691679692746 in words is "one trillion, six hundred ninety-one billion, six hundred seventy-nine million, six hundred ninety-two thousand, seven hundred forty-six".