61317261100 has 18 divisors (see below), whose sum is σ = 133058456804. Its totient is φ = 24526904400.

The previous prime is 61317261041. The next prime is 61317261133. The reversal of 61317261100 is 116271316.

61317261100 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 5 ways as a sum of consecutive naturals, for example, 306586206 + ... + 306586405.

Almost surely, 2^61317261100 is an apocalyptic number.

It is an amenable number.

61317261100 is an abundant number, since it is smaller than the sum of its proper divisors (71741195704).

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

61317261100 is a wasteful number, since it uses less digits than its factorization.

61317261100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613172625 (or 613172618 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 61317261100 in words is "sixty-one billion, three hundred seventeen million, two hundred sixty-one thousand, one hundred".