1685377361352 has 64 divisors (see below), whose sum is σ = 4327543457280. Its totient is φ = 546580680192.

The previous prime is 1685377361347. The next prime is 1685377361411. The reversal of 1685377361352 is 2531637735861.

It is a junction number, because it is equal to n+sod(n) for n = 1685377361292 and 1685377361301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23614473 + ... + 23685735.

It is an arithmetic number, because the mean of its divisors is an integer number (67617866520).

Almost surely, 2^{1685377361352} is an apocalyptic number.

1685377361352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1685377361352 is an abundant number, since it is smaller than the sum of its proper divisors (2642166095928).

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

1685377361352 is a wasteful number, since it uses less digits than its factorization.

1685377361352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97942 (or 97938 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 57.

The spelling of 1685377361352 in words is "one trillion, six hundred eighty-five billion, three hundred seventy-seven million, three hundred sixty-one thousand, three hundred fifty-two".