2004335421381 has 12 divisors (see below), whose sum is σ = 2895889209408. Its totient is φ = 1335882978024.

The previous prime is 2004335421331. The next prime is 2004335421397. The reversal of 2004335421381 is 1831245334002.

2004335421381 is a `hidden beast` number, since 2 + 0 + 0 + 4 + 33 + 542 + 1 + 3 + 81 = 666.

It is not a de Polignac number, because 2004335421381 - 2⁶ = 2004335421317 is a prime.

It is a super-2 number, since 2×2004335421381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004335421331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28349085 + ... + 28419698.

It is an arithmetic number, because the mean of its divisors is an integer number (241324100784).

Almost surely, 2^{2004335421381} is an apocalyptic number.

It is an amenable number.

2004335421381 is a deficient number, since it is larger than the sum of its proper divisors (891553788027).

2004335421381 is a wasteful number, since it uses less digits than its factorization.

2004335421381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56772712 (or 56772709 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 2004335421381 in words is "two trillion, four billion, three hundred thirty-five million, four hundred twenty-one thousand, three hundred eighty-one".