1689168925379 has 8 divisors (see below), whose sum is σ = 1819203147552. Its totient is φ = 1559148724800.

The previous prime is 1689168925361. The next prime is 1689168925391. The reversal of 1689168925379 is 9735298619861.

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-1689168925379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1689168925679) 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, 3254522 + ... + 3737679.

It is an arithmetic number, because the mean of its divisors is an integer number (227400393444).

Almost surely, 2^{1689168925379} is an apocalyptic number.

1689168925379 is a deficient number, since it is larger than the sum of its proper divisors (130034222173).

1689168925379 is a wasteful number, since it uses less digits than its factorization.

1689168925379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7010797.

The product of its digits is 352719360, while the sum is 74.

The spelling of 1689168925379 in words is "one trillion, six hundred eighty-nine billion, one hundred sixty-eight million, nine hundred twenty-five thousand, three hundred seventy-nine".