4121494549556 has 6 divisors (see below), whose sum is σ = 7212615461730. Its totient is φ = 2060747274776.

The previous prime is 4121494549553. The next prime is 4121494549589. The reversal of 4121494549556 is 6559454941214.

It can be written as a sum of positive squares in only one way, i.e., 3873480589456 + 248013960100 = 1968116^2 + 498010^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4121494549495 and 4121494549504.

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 as a sum of consecutive naturals, namely, 515186818691 + ... + 515186818698.

It is an arithmetic number, because the mean of its divisors is an integer number (1202102576955).

Almost surely, 2^{4121494549556} is an apocalyptic number.

It is an amenable number.

4121494549556 is a deficient number, since it is larger than the sum of its proper divisors (3091120912174).

4121494549556 is a wasteful number, since it uses less digits than its factorization.

4121494549556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030373637393 (or 1030373637391 counting only the distinct ones).

The product of its digits is 31104000, while the sum is 59.

The spelling of 4121494549556 in words is "four trillion, one hundred twenty-one billion, four hundred ninety-four million, five hundred forty-nine thousand, five hundred fifty-six".