61257846089920 has 28 divisors (see below), whose sum is σ = 145870246002384. Its totient is φ = 24503138435840.

The previous prime is 61257846089887. The next prime is 61257846089987. The reversal of 61257846089920 is 2998064875216.

61257846089920 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95715384196 + ... + 95715384835.

Almost surely, 2^{61257846089920} is an apocalyptic number.

It is an amenable number.

61257846089920 is an abundant number, since it is smaller than the sum of its proper divisors (84612399912464).

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

61257846089920 is a wasteful number, since it uses less digits than its factorization.

61257846089920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191430769048 (or 191430769038 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 67.

The spelling of 61257846089920 in words is "sixty-one trillion, two hundred fifty-seven billion, eight hundred forty-six million, eighty-nine thousand, nine hundred twenty".