61310718112 has 48 divisors (see below), whose sum is σ = 138073178880. Its totient is φ = 26252391168.

The previous prime is 61310718031. The next prime is 61310718121. The reversal of 61310718112 is 21181701316.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127689 + ... + 372727.

It is an arithmetic number, because the mean of its divisors is an integer number (2876524560).

Almost surely, 2^61310718112 is an apocalyptic number.

It is an amenable number.

61310718112 is an abundant number, since it is smaller than the sum of its proper divisors (76762460768).

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

61310718112 is a wasteful number, since it uses less digits than its factorization.

61310718112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246173 (or 246165 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 31.

The spelling of 61310718112 in words is "sixty-one billion, three hundred ten million, seven hundred eighteen thousand, one hundred twelve".