2181413691282 has 64 divisors (see below), whose sum is σ = 5203137982464. Its totient is φ = 596132602560.

The previous prime is 2181413691239. The next prime is 2181413691283. The reversal of 2181413691282 is 2821963141812.

It is a super-3 number, since 3×2181413691282³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2181413691283) 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, 24537432 + ... + 24626172.

It is an arithmetic number, because the mean of its divisors is an integer number (81299030976).

Almost surely, 2^{2181413691282} is an apocalyptic number.

2181413691282 is an abundant number, since it is smaller than the sum of its proper divisors (3021724291182).

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

2181413691282 is a wasteful number, since it uses less digits than its factorization.

2181413691282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114223.

The product of its digits is 331776, while the sum is 48.

The spelling of 2181413691282 in words is "two trillion, one hundred eighty-one billion, four hundred thirteen million, six hundred ninety-one thousand, two hundred eighty-two".