1696818829872 has 30 divisors (see below), whose sum is σ = 4383471958068. Its totient is φ = 565603268352.

The previous prime is 1696818829837. The next prime is 1696818829873. The reversal of 1696818829872 is 2789288186961.

It is a junction number, because it is equal to n+sod(n) for n = 1696818829794 and 1696818829803.

It is not an unprimeable number, because it can be changed into a prime (1696818829873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8930808 + ... + 9118824.

Almost surely, 2^{1696818829872} is an apocalyptic number.

1696818829872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1696818829872 is an abundant number, since it is smaller than the sum of its proper divisors (2686653128196).

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

1696818829872 is an frugal number, since it uses more digits than its factorization.

1696818829872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376045 (or 188022 counting only the distinct ones).

The product of its digits is 334430208, while the sum is 75.

Multiplying 1696818829872 by its sum of digits (75), we get a square (127261412240400 = 11281020²).

The spelling of 1696818829872 in words is "one trillion, six hundred ninety-six billion, eight hundred eighteen million, eight hundred twenty-nine thousand, eight hundred seventy-two".