181026456212 has 24 divisors (see below), whose sum is σ = 362535048960. Its totient is φ = 77479452000.

The previous prime is 181026456211. The next prime is 181026456253. The reversal of 181026456212 is 212654620181.

It is a happy number.

181026456212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181026456211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4283387 + ... + 4325442.

It is an arithmetic number, because the mean of its divisors is an integer number (15105627040).

Almost surely, 2^181026456212 is an apocalyptic number.

It is an amenable number.

181026456212 is an abundant number, since it is smaller than the sum of its proper divisors (181508592748).

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

181026456212 is a wasteful number, since it uses less digits than its factorization.

181026456212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8609591 (or 8609589 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The spelling of 181026456212 in words is "one hundred eighty-one billion, twenty-six million, four hundred fifty-six thousand, two hundred twelve".