1361073081984 has 256 divisors, whose sum is σ = 4509338204160. Its totient is φ = 353377382400.

The previous prime is 1361073081967. The next prime is 1361073081989. The reversal of 1361073081984 is 4891803701631.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1361073081989) 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, 82516042 + ... + 82532534.

It is an arithmetic number, because the mean of its divisors is an integer number (17614602360).

Almost surely, 2^{1361073081984} is an apocalyptic number.

1361073081984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1361073081984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2254669102080).

1361073081984 is an abundant number, since it is smaller than the sum of its proper divisors (3148265122176).

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

1361073081984 is a wasteful number, since it uses less digits than its factorization.

1361073081984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19319 (or 19307 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 1361073081984 in words is "one trillion, three hundred sixty-one billion, seventy-three million, eighty-one thousand, nine hundred eighty-four".