181962212796 has 432 divisors, whose sum is σ = 583469961984. Its totient is φ = 46804552704.

The previous prime is 181962212779. The next prime is 181962212851. The reversal of 181962212796 is 697212269181.

It is a happy number.

181962212796 is a `hidden beast` number, since 1 + 8 + 1 + 9 + 622 + 1 + 2 + 7 + 9 + 6 = 666.

It is a super-2 number, since 2×181962212796² (a number of 23 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 143 ways as a sum of consecutive naturals, for example, 332654595 + ... + 332655141.

It is an arithmetic number, because the mean of its divisors is an integer number (1350624912).

Almost surely, 2^181962212796 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 181962212796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291734980992).

181962212796 is an abundant number, since it is smaller than the sum of its proper divisors (401507749188).

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

181962212796 is a wasteful number, since it uses less digits than its factorization.

181962212796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 752 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The spelling of 181962212796 in words is "one hundred eighty-one billion, nine hundred sixty-two million, two hundred twelve thousand, seven hundred ninety-six".