6451121204504 has 64 divisors (see below), whose sum is σ = 13044464208000. Its totient is φ = 2979942603264.

The previous prime is 6451121204491. The next prime is 6451121204551. The reversal of 6451121204504 is 4054021211546.

It is a super-2 number, since 2×6451121204504² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1327847 + ... + 3829545.

It is an arithmetic number, because the mean of its divisors is an integer number (203819753250).

Almost surely, 2^{6451121204504} is an apocalyptic number.

It is an amenable number.

6451121204504 is an abundant number, since it is smaller than the sum of its proper divisors (6593343003496).

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

6451121204504 is a wasteful number, since it uses less digits than its factorization.

6451121204504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502072 (or 2502068 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 6451121204504 in words is "six trillion, four hundred fifty-one billion, one hundred twenty-one million, two hundred four thousand, five hundred four".