618542048559 has 8 divisors (see below), whose sum is σ = 868129191040. Its totient is φ = 390658135896.

The previous prime is 618542048513. The next prime is 618542048561. The reversal of 618542048559 is 955840245816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 618542048559 - 2⁸ = 618542048303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 10851614887 = 618542048559 / (6 + 1 + 8 + 5 + 4 + 2 + 0 + 4 + 8 + 5 + 5 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 618542048499 and 618542048508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618542048659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5425807387 + ... + 5425807500.

It is an arithmetic number, because the mean of its divisors is an integer number (108516148880).

Almost surely, 2^618542048559 is an apocalyptic number.

618542048559 is a deficient number, since it is larger than the sum of its proper divisors (249587142481).

618542048559 is a wasteful number, since it uses less digits than its factorization.

618542048559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10851614909.

The product of its (nonzero) digits is 13824000, while the sum is 57.

The spelling of 618542048559 in words is "six hundred eighteen billion, five hundred forty-two million, forty-eight thousand, five hundred fifty-nine".