58518017861 has 4 divisors (see below), whose sum is σ = 58518503232. Its totient is φ = 58517532492.

The previous prime is 58518017821. The next prime is 58518017869. The reversal of 58518017861 is 16871081585.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-58518017861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58518017869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92180 + ... + 354306.

It is an arithmetic number, because the mean of its divisors is an integer number (14629625808).

Almost surely, 2^58518017861 is an apocalyptic number.

It is an amenable number.

58518017861 is a deficient number, since it is larger than the sum of its proper divisors (485371).

58518017861 is a wasteful number, since it uses less digits than its factorization.

58518017861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485370.

The product of its (nonzero) digits is 537600, while the sum is 50.

The spelling of 58518017861 in words is "fifty-eight billion, five hundred eighteen million, seventeen thousand, eight hundred sixty-one".