2004154051421 has 16 divisors (see below), whose sum is σ = 2098199448576. Its totient is φ = 1911952560000.

The previous prime is 2004154051391. The next prime is 2004154051429. The reversal of 2004154051421 is 1241504514002.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2004154051421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004154051429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19451681 + ... + 19554441.

It is an arithmetic number, because the mean of its divisors is an integer number (131137465536).

Almost surely, 2^{2004154051421} is an apocalyptic number.

It is an amenable number.

2004154051421 is a deficient number, since it is larger than the sum of its proper divisors (94045397155).

2004154051421 is a wasteful number, since it uses less digits than its factorization.

2004154051421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111724.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 2004154051421 its reverse (1241504514002), we get a palindrome (3245658565423).

The spelling of 2004154051421 in words is "two trillion, four billion, one hundred fifty-four million, fifty-one thousand, four hundred twenty-one".