1689935377998 has 48 divisors (see below), whose sum is σ = 3931802135424. Its totient is φ = 482824465200.

The previous prime is 1689935377961. The next prime is 1689935378017. The reversal of 1689935377998 is 8997735399861.

It is a self number, because there is not a number n which added to its sum of digits gives 1689935377998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13771911 + ... + 13894077.

It is an arithmetic number, because the mean of its divisors is an integer number (81912544488).

Almost surely, 2^{1689935377998} is an apocalyptic number.

1689935377998 is an abundant number, since it is smaller than the sum of its proper divisors (2241866757426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1689935377998 is a wasteful number, since it uses less digits than its factorization.

1689935377998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169237 (or 169230 counting only the distinct ones).

The product of its digits is 5555329920, while the sum is 84.

The spelling of 1689935377998 in words is "one trillion, six hundred eighty-nine billion, nine hundred thirty-five million, three hundred seventy-seven thousand, nine hundred ninety-eight".