58991665924 has 9 divisors (see below), whose sum is σ = 103236265461. Its totient is φ = 29495590080.

The previous prime is 58991665891. The next prime is 58991665973. The reversal of 58991665924 is 42956619985.

The square root of 58991665924 is 242882.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 42443416324 + 16548249600 = 206018^2 + 128640^2 .

It is a Duffinian 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 in 2 ways as a sum of consecutive naturals, for example, 425044 + ... + 546484.

Almost surely, 2^58991665924 is an apocalyptic number.

58991665924 is the 242882-nd square number.

It is an amenable number.

58991665924 is a deficient number, since it is larger than the sum of its proper divisors (44244599537).

58991665924 is an frugal number, since it uses more digits than its factorization.

58991665924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242886 (or 121443 counting only the distinct ones).

The product of its digits is 41990400, while the sum is 64.

Multiplying 58991665924 by its sum of digits (64), we get a square (3775466619136 = 1943056²).

The spelling of 58991665924 in words is "fifty-eight billion, nine hundred ninety-one million, six hundred sixty-five thousand, nine hundred twenty-four".