61280871216 has 40 divisors (see below), whose sum is σ = 158318085744. Its totient is φ = 20425774080.

The previous prime is 61280871191. The next prime is 61280871233. The reversal of 61280871216 is 61217808216.

61280871216 is digitally balanced in base 2, 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 7 ways as a sum of consecutive naturals, for example, 1295860 + ... + 1342316.

Almost surely, 2^61280871216 is an apocalyptic number.

It is an amenable number.

61280871216 is an abundant number, since it is smaller than the sum of its proper divisors (97037214528).

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

61280871216 is a wasteful number, since it uses less digits than its factorization.

61280871216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73949 (or 73943 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The spelling of 61280871216 in words is "sixty-one billion, two hundred eighty million, eight hundred seventy-one thousand, two hundred sixteen".