61284963364 has 27 divisors (see below), whose sum is σ = 109964732241. Its totient is φ = 29885201760.

The previous prime is 61284963359. The next prime is 61284963379. The reversal of 61284963364 is 46336948216.

The square root of 61284963364 is 247558.

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., 2953052964 + 58331910400 = 54342^2 + 241520^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20298247 + ... + 20301265.

Almost surely, 2^61284963364 is an apocalyptic number.

61284963364 is the 247558-th square number.

It is an amenable number.

61284963364 is a deficient number, since it is larger than the sum of its proper divisors (48679768877).

61284963364 is an frugal number, since it uses more digits than its factorization.

61284963364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6124 (or 3062 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 52.

The spelling of 61284963364 in words is "sixty-one billion, two hundred eighty-four million, nine hundred sixty-three thousand, three hundred sixty-four".