1689137343898 has 8 divisors (see below), whose sum is σ = 2536028389440. Its totient is φ = 843794547420.

The previous prime is 1689137343877. The next prime is 1689137343917. The reversal of 1689137343898 is 8983437319861.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387059538 + ... + 387063901.

It is an arithmetic number, because the mean of its divisors is an integer number (317003548680).

Almost surely, 2^{1689137343898} is an apocalyptic number.

1689137343898 is a deficient number, since it is larger than the sum of its proper divisors (846891045542).

1689137343898 is a wasteful number, since it uses less digits than its factorization.

1689137343898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774124532.

The product of its digits is 188116992, while the sum is 70.

The spelling of 1689137343898 in words is "one trillion, six hundred eighty-nine billion, one hundred thirty-seven million, three hundred forty-three thousand, eight hundred ninety-eight".