61768271172 has 48 divisors (see below), whose sum is σ = 153019964160. Its totient is φ = 19325455872.

The previous prime is 61768271143. The next prime is 61768271219. The reversal of 61768271172 is 27117286716.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337647 + ... + 487382.

It is an arithmetic number, because the mean of its divisors is an integer number (3187915920).

Almost surely, 2^61768271172 is an apocalyptic number.

It is an amenable number.

61768271172 is an abundant number, since it is smaller than the sum of its proper divisors (91251692988).

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

61768271172 is a wasteful number, since it uses less digits than its factorization.

61768271172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825420 (or 825418 counting only the distinct ones).

The product of its digits is 395136, while the sum is 48.

The spelling of 61768271172 in words is "sixty-one billion, seven hundred sixty-eight million, two hundred seventy-one thousand, one hundred seventy-two".