541544553478 has 4 divisors (see below), whose sum is σ = 812316830220. Its totient is φ = 270772276738.

The previous prime is 541544553437. The next prime is 541544553523. The reversal of 541544553478 is 874355445145.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135386138368 + ... + 135386138371.

It is an arithmetic number, because the mean of its divisors is an integer number (203079207555).

Almost surely, 2^541544553478 is an apocalyptic number.

541544553478 is a deficient number, since it is larger than the sum of its proper divisors (270772276742).

541544553478 is a wasteful number, since it uses less digits than its factorization.

541544553478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270772276741.

The product of its digits is 26880000, while the sum is 55.

The spelling of 541544553478 in words is "five hundred forty-one billion, five hundred forty-four million, five hundred fifty-three thousand, four hundred seventy-eight".