58742516821 has 4 divisors (see below), whose sum is σ = 58933860832. Its totient is φ = 58551172812.

The previous prime is 58742516779. The next prime is 58742516827. The reversal of 58742516821 is 12861524785.

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 an emirpimes, since its reverse is a distinct semiprime: 12861524785 = 5 ⋅2572304957.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-58742516821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58742516827) 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, 95671545 + ... + 95672158.

It is an arithmetic number, because the mean of its divisors is an integer number (14733465208).

Almost surely, 2^58742516821 is an apocalyptic number.

It is an amenable number.

58742516821 is a deficient number, since it is larger than the sum of its proper divisors (191344011).

58742516821 is a wasteful number, since it uses less digits than its factorization.

58742516821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191344010.

The product of its digits is 1075200, while the sum is 49.

The spelling of 58742516821 in words is "fifty-eight billion, seven hundred forty-two million, five hundred sixteen thousand, eight hundred twenty-one".