1681834854 has 64 divisors (see below), whose sum is σ = 4101622272. Its totient is φ = 448780800.

The previous prime is 1681834841. The next prime is 1681834859. The reversal of 1681834854 is 4584381861.

1681834854 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1681834854² = 5657136952258402632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681834859) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84544 + ... + 102524.

It is an arithmetic number, because the mean of its divisors is an integer number (64087848).

Almost surely, 2^1681834854 is an apocalyptic number.

1681834854 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1681834854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2050811136).

1681834854 is an abundant number, since it is smaller than the sum of its proper divisors (2419787418).

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

1681834854 is a wasteful number, since it uses less digits than its factorization.

1681834854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18141.

The product of its digits is 737280, while the sum is 48.

The square root of 1681834854 is about 41010.1798825609. The cubic root of 1681834854 is about 1189.2170199524.

The spelling of 1681834854 in words is "one billion, six hundred eighty-one million, eight hundred thirty-four thousand, eight hundred fifty-four".