1791427386112 has 216 divisors, whose sum is σ = 4685557889376. Its totient is φ = 667006599168.

The previous prime is 1791427386019. The next prime is 1791427386139. The reversal of 1791427386112 is 2116837241971.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 1791427386112.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4974438 + ... + 5322394.

It is an arithmetic number, because the mean of its divisors is an integer number (21692397636).

Almost surely, 2^{1791427386112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1791427386112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2342778944688).

1791427386112 is an abundant number, since it is smaller than the sum of its proper divisors (2894130503264).

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

1791427386112 is a wasteful number, since it uses less digits than its factorization.

1791427386112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348023 (or 347996 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 52.

The spelling of 1791427386112 in words is "one trillion, seven hundred ninety-one billion, four hundred twenty-seven million, three hundred eighty-six thousand, one hundred twelve".