61716471184 has 45 divisors (see below), whose sum is σ = 120606796513. Its totient is φ = 30594405056.

The previous prime is 61716471139. The next prime is 61716471259. The reversal of 61716471184 is 48117461716.

The square root of 61716471184 is 248428.

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., 56140563600 + 5575907584 = 236940^2 + 74672^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 171911997 + ... + 171912355.

Almost surely, 2^61716471184 is an apocalyptic number.

61716471184 is the 248428-th square number.

It is an amenable number.

61716471184 is a deficient number, since it is larger than the sum of its proper divisors (58890325329).

61716471184 is an frugal number, since it uses more digits than its factorization.

61716471184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 534 counting only the distinct ones).

The product of its digits is 225792, while the sum is 46.

It can be divided in two parts, 61716 and 471184, that added together give a square (532900 = 730²).

The spelling of 61716471184 in words is "sixty-one billion, seven hundred sixteen million, four hundred seventy-one thousand, one hundred eighty-four".