61534984256 has 14 divisors (see below), whose sum is σ = 122108484510. Its totient is φ = 30767492096.

The previous prime is 61534984237. The next prime is 61534984289. The reversal of 61534984256 is 65248943516.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 52550977600 + 8984006656 = 229240^2 + 94784^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61534984198 and 61534984207.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480742001 + ... + 480742128.

Almost surely, 2^61534984256 is an apocalyptic number.

It is an amenable number.

61534984256 is a deficient number, since it is larger than the sum of its proper divisors (60573500254).

61534984256 is an equidigital number, since it uses as much as digits as its factorization.

61534984256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961484141 (or 961484131 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 53.

The spelling of 61534984256 in words is "sixty-one billion, five hundred thirty-four million, nine hundred eighty-four thousand, two hundred fifty-six".