58679249821 has 4 divisors (see below), whose sum is σ = 59786405532. Its totient is φ = 57572094112.

The previous prime is 58679249791. The next prime is 58679249857. The reversal of 58679249821 is 12894297685.

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

It can be written as a sum of positive squares in 2 ways, for example, as 50113747321 + 8565502500 = 223861^2 + 92550^2 .

It is a cyclic number.

It is not a de Polignac number, because 58679249821 - 2¹³ = 58679241629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 58679249821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58679249021) 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, 553577776 + ... + 553577881.

It is an arithmetic number, because the mean of its divisors is an integer number (14946601383).

Almost surely, 2^58679249821 is an apocalyptic number.

It is an amenable number.

58679249821 is a deficient number, since it is larger than the sum of its proper divisors (1107155711).

58679249821 is a wasteful number, since it uses less digits than its factorization.

58679249821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107155710.

The product of its digits is 17418240, while the sum is 61.

The spelling of 58679249821 in words is "fifty-eight billion, six hundred seventy-nine million, two hundred forty-nine thousand, eight hundred twenty-one".