61228576328 has 16 divisors (see below), whose sum is σ = 115940251260. Its totient is φ = 30311176000.

The previous prime is 61228576327. The next prime is 61228576363. The reversal of 61228576328 is 82367582216.

It can be written as a sum of positive squares in 2 ways, for example, as 53156991364 + 8071584964 = 230558^2 + 89842^2 .

It is not an unprimeable number, because it can be changed into a prime (61228576327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37888163 + ... + 37889778.

Almost surely, 2^61228576328 is an apocalyptic number.

It is an amenable number.

61228576328 is a deficient number, since it is larger than the sum of its proper divisors (54711674932).

61228576328 is a wasteful number, since it uses less digits than its factorization.

61228576328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75778048 (or 75778044 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The spelling of 61228576328 in words is "sixty-one billion, two hundred twenty-eight million, five hundred seventy-six thousand, three hundred twenty-eight".