61028555860830 has 64 divisors (see below), whose sum is σ = 152842084697088. Its totient is φ = 15566158840320.

The previous prime is 61028555860801. The next prime is 61028555860849. The reversal of 61028555860830 is 3806855582016.

61028555860830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18349095 + ... + 21418365.

It is an arithmetic number, because the mean of its divisors is an integer number (2388157573392).

Almost surely, 2^{61028555860830} is an apocalyptic number.

61028555860830 is an abundant number, since it is smaller than the sum of its proper divisors (91813528836258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61028555860830 is a wasteful number, since it uses less digits than its factorization.

61028555860830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098121.

The product of its (nonzero) digits is 13824000, while the sum is 57.

The spelling of 61028555860830 in words is "sixty-one trillion, twenty-eight billion, five hundred fifty-five million, eight hundred sixty thousand, eight hundred thirty".