2141856078084 has 96 divisors (see below), whose sum is σ = 5809291488000. Its totient is φ = 681154771968.

The previous prime is 2141856078083. The next prime is 2141856078091. The reversal of 2141856078084 is 4808706581412.

2141856078084 is a `hidden beast` number, since 2 + 1 + 4 + 1 + 8 + 560 + 78 + 0 + 8 + 4 = 666.

It is a super-2 number, since 2×2141856078084² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 2141856078084.

It is not an unprimeable number, because it can be changed into a prime (2141856078083) 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, 142029 + ... + 2074580.

It is an arithmetic number, because the mean of its divisors is an integer number (60513453000).

Almost surely, 2^{2141856078084} 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 2141856078084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2904645744000).

2141856078084 is an abundant number, since it is smaller than the sum of its proper divisors (3667435409916).

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

2141856078084 is a wasteful number, since it uses less digits than its factorization.

2141856078084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217034 (or 2217026 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 54.

The spelling of 2141856078084 in words is "two trillion, one hundred forty-one billion, eight hundred fifty-six million, seventy-eight thousand, eighty-four".