2921684469084 has 96 divisors (see below), whose sum is σ = 7617562444800. Its totient is φ = 968399441280.

The previous prime is 2921684469071. The next prime is 2921684469103. The reversal of 2921684469084 is 4809644861292.

2921684469084 is a `hidden beast` number, since 2 + 9 + 2 + 16 + 84 + 469 + 0 + 84 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19759789 + ... + 19907099.

It is an arithmetic number, because the mean of its divisors is an integer number (79349608800).

Almost surely, 2^{2921684469084} 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 2921684469084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3808781222400).

2921684469084 is an abundant number, since it is smaller than the sum of its proper divisors (4695877975716).

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

2921684469084 is a wasteful number, since it uses less digits than its factorization.

2921684469084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148360 (or 148352 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 63.

The spelling of 2921684469084 in words is "two trillion, nine hundred twenty-one billion, six hundred eighty-four million, four hundred sixty-nine thousand, eighty-four".