4121494549557 has 64 divisors (see below), whose sum is σ = 7055636889600. Its totient is φ = 2078104466880.

The previous prime is 4121494549553. The next prime is 4121494549589. The reversal of 4121494549557 is 7559454941214.

It is a happy number.

It is not a de Polignac number, because 4121494549557 - 2² = 4121494549553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4121494549557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4121494549553) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 837273 + ... + 2990654.

It is an arithmetic number, because the mean of its divisors is an integer number (110244326400).

Almost surely, 2^{4121494549557} is an apocalyptic number.

It is an amenable number.

4121494549557 is a deficient number, since it is larger than the sum of its proper divisors (2934142340043).

4121494549557 is a wasteful number, since it uses less digits than its factorization.

4121494549557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3828086.

The product of its digits is 36288000, while the sum is 60.

The spelling of 4121494549557 in words is "four trillion, one hundred twenty-one billion, four hundred ninety-four million, five hundred forty-nine thousand, five hundred fifty-seven".