1781120232084 has 24 divisors (see below), whose sum is σ = 4170737063808. Its totient is φ = 591593907520.

The previous prime is 1781120232077. The next prime is 1781120232119. The reversal of 1781120232084 is 4802320211871.

It is a super-2 number, since 2×1781120232084² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264101052 + ... + 264107795.

It is an arithmetic number, because the mean of its divisors is an integer number (173780710992).

Almost surely, 2^{1781120232084} is an apocalyptic number.

It is an amenable number.

1781120232084 is an abundant number, since it is smaller than the sum of its proper divisors (2389616831724).

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

1781120232084 is a wasteful number, since it uses less digits than its factorization.

1781120232084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528209135 (or 528209133 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 1781120232084 in words is "one trillion, seven hundred eighty-one billion, one hundred twenty million, two hundred thirty-two thousand, eighty-four".