2152421064404 has 72 divisors (see below), whose sum is σ = 4161015321120. Its totient is φ = 973500957312.

The previous prime is 2152421064403. The next prime is 2152421064427. The reversal of 2152421064404 is 4044601242512.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152421064403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12558107 + ... + 12728349.

It is an arithmetic number, because the mean of its divisors is an integer number (57791879460).

Almost surely, 2^{2152421064404} is an apocalyptic number.

It is an amenable number.

2152421064404 is a deficient number, since it is larger than the sum of its proper divisors (2008594256716).

2152421064404 is a wasteful number, since it uses less digits than its factorization.

2152421064404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170649 (or 170634 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The spelling of 2152421064404 in words is "two trillion, one hundred fifty-two billion, four hundred twenty-one million, sixty-four thousand, four hundred four".