61030386388 has 6 divisors (see below), whose sum is σ = 106803176186. Its totient is φ = 30515193192.

The previous prime is 61030386383. The next prime is 61030386413. The reversal of 61030386388 is 88368303016.

It can be written as a sum of positive squares in only one way, i.e., 51337590084 + 9692796304 = 226578^2 + 98452^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61030386383) by changing a digit.

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 as a sum of consecutive naturals, namely, 7628798295 + ... + 7628798302.

Almost surely, 2^61030386388 is an apocalyptic number.

It is an amenable number.

61030386388 is a deficient number, since it is larger than the sum of its proper divisors (45772789798).

61030386388 is a wasteful number, since it uses less digits than its factorization.

61030386388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15257596601 (or 15257596599 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 61030386388 in words is "sixty-one billion, thirty million, three hundred eighty-six thousand, three hundred eighty-eight".