4012800654521 has 16 divisors (see below), whose sum is σ = 4066961793984. Its totient is φ = 3958973781504.

The previous prime is 4012800654509. The next prime is 4012800654587. The reversal of 4012800654521 is 1254560082104.

It is a happy number.

It is not a de Polignac number, because 4012800654521 - 2¹⁰ = 4012800653497 is a prime.

It is a super-2 number, since 2×4012800654521² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4012800854521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159459686 + ... + 159484848.

It is an arithmetic number, because the mean of its divisors is an integer number (254185112124).

Almost surely, 2^{4012800654521} is an apocalyptic number.

It is an amenable number.

4012800654521 is a deficient number, since it is larger than the sum of its proper divisors (54161139463).

4012800654521 is a wasteful number, since it uses less digits than its factorization.

4012800654521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31720.

The product of its (nonzero) digits is 76800, while the sum is 38.

The spelling of 4012800654521 in words is "four trillion, twelve billion, eight hundred million, six hundred fifty-four thousand, five hundred twenty-one".