58695721984 has 99 divisors (see below), whose sum is σ = 120174930057. Its totient is φ = 28653993984.

The previous prime is 58695721879. The next prime is 58695722053. The reversal of 58695721984 is 48912759685.

It is a happy number.

The square root of 58695721984 is 242272.

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., 1034265600 + 57661456384 = 32160^2 + 240128^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 519431112 + ... + 519431224.

Almost surely, 2^58695721984 is an apocalyptic number.

58695721984 is the 242272-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 58695721984

58695721984 is an abundant number, since it is smaller than the sum of its proper divisors (61479208073).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

58695721984 is an frugal number, since it uses more digits than its factorization.

58695721984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 182 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 64.

Multiplying 58695721984 by its sum of digits (64), we get a square (3756526206976 = 1938176²).

58695721984 divided by its sum of digits (64) gives a square (917120656 = 30284²).

The spelling of 58695721984 in words is "fifty-eight billion, six hundred ninety-five million, seven hundred twenty-one thousand, nine hundred eighty-four".