1955681682 has 8 divisors (see below), whose sum is σ = 3911363376. Its totient is φ = 651893892.

The previous prime is 1955681681. The next prime is 1955681737. The reversal of 1955681682 is 2861865591.

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

1955681682 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1955681681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162973468 + ... + 162973479.

It is an arithmetic number, because the mean of its divisors is an integer number (488920422).

Almost surely, 2^1955681682 is an apocalyptic number.

1955681682 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1955681682 is a wasteful number, since it uses less digits than its factorization.

1955681682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325946952.

The product of its digits is 1036800, while the sum is 51.

The square root of 1955681682 is about 44223.0899191814. The cubic root of 1955681682 is about 1250.5451876751.

The spelling of 1955681682 in words is "one billion, nine hundred fifty-five million, six hundred eighty-one thousand, six hundred eighty-two".