1982820914894 has 8 divisors (see below), whose sum is σ = 2974418631648. Its totient is φ = 991348037680.

The previous prime is 1982820914891. The next prime is 1982820914923. The reversal of 1982820914894 is 4984190282891.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1982820914894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982820914891) 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, 31170167 + ... + 31233714.

It is an arithmetic number, because the mean of its divisors is an integer number (371802328956).

Almost surely, 2^{1982820914894} is an apocalyptic number.

1982820914894 is a deficient number, since it is larger than the sum of its proper divisors (991597716754).

1982820914894 is a wasteful number, since it uses less digits than its factorization.

1982820914894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62419770.

The product of its (nonzero) digits is 23887872, while the sum is 65.

The spelling of 1982820914894 in words is "one trillion, nine hundred eighty-two billion, eight hundred twenty million, nine hundred fourteen thousand, eight hundred ninety-four".