4148461228521 has 16 divisors (see below), whose sum is σ = 5878929904640. Its totient is φ = 2594643094800.

The previous prime is 4148461228469. The next prime is 4148461228529. The reversal of 4148461228521 is 1258221648414.

It is a de Polignac number, because none of the positive numbers 2^k-4148461228521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4148461228529) 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, 353295205 + ... + 353306946.

It is an arithmetic number, because the mean of its divisors is an integer number (367433119040).

Almost surely, 2^{4148461228521} is an apocalyptic number.

It is an amenable number.

4148461228521 is a deficient number, since it is larger than the sum of its proper divisors (1730468676119).

4148461228521 is a wasteful number, since it uses less digits than its factorization.

4148461228521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706602276.

The product of its digits is 983040, while the sum is 48.

The spelling of 4148461228521 in words is "four trillion, one hundred forty-eight billion, four hundred sixty-one million, two hundred twenty-eight thousand, five hundred twenty-one".