1984317671020 has 12 divisors (see below), whose sum is σ = 4167067109184. Its totient is φ = 793727068400.

The previous prime is 1984317670991. The next prime is 1984317671023. The reversal of 1984317671020 is 201767134891.

It is not an unprimeable number, because it can be changed into a prime (1984317671023) 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, 49607941756 + ... + 49607941795.

It is an arithmetic number, because the mean of its divisors is an integer number (347255592432).

Almost surely, 2^{1984317671020} is an apocalyptic number.

1984317671020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1984317671020 is an abundant number, since it is smaller than the sum of its proper divisors (2182749438164).

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

1984317671020 is a wasteful number, since it uses less digits than its factorization.

1984317671020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99215883560 (or 99215883558 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 49.

The spelling of 1984317671020 in words is "one trillion, nine hundred eighty-four billion, three hundred seventeen million, six hundred seventy-one thousand, twenty".