13541554433 has 12 divisors (see below), whose sum is σ = 15051772260. Its totient is φ = 12172174080.

The previous prime is 13541554421. The next prime is 13541554463. The reversal of 13541554433 is 33445514531.

It can be written as a sum of positive squares in 2 ways, for example, as 1083199744 + 12458354689 = 32912^2 + 111617^2 .

It is not a de Polignac number, because 13541554433 - 2⁴ = 13541554417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13541554463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 617960 + ... + 639497.

It is an arithmetic number, because the mean of its divisors is an integer number (1254314355).

Almost surely, 2^13541554433 is an apocalyptic number.

It is an amenable number.

13541554433 is a deficient number, since it is larger than the sum of its proper divisors (1510217827).

13541554433 is a wasteful number, since it uses less digits than its factorization.

13541554433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257568 (or 1257557 counting only the distinct ones).

The product of its digits is 216000, while the sum is 38.

The spelling of 13541554433 in words is "thirteen billion, five hundred forty-one million, five hundred fifty-four thousand, four hundred thirty-three".