61272836273736 has 24 divisors (see below), whose sum is σ = 165947264908230. Its totient is φ = 20424278757888.

The previous prime is 61272836273723. The next prime is 61272836273783. The reversal of 61272836273736 is 63737263827216.

61272836273736 is a `hidden beast` number, since 6 + 12 + 7 + 283 + 6 + 273 + 73 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 46343499451236 + 14929336822500 = 6807606^2 + 3863850^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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, 425505807385 + ... + 425505807528.

Almost surely, 2^{61272836273736} is an apocalyptic number.

It is an amenable number.

61272836273736 is an abundant number, since it is smaller than the sum of its proper divisors (104674428634494).

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

61272836273736 is a wasteful number, since it uses less digits than its factorization.

61272836273736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851011614925 (or 851011614918 counting only the distinct ones).

The product of its digits is 128024064, while the sum is 63.

The spelling of 61272836273736 in words is "sixty-one trillion, two hundred seventy-two billion, eight hundred thirty-six million, two hundred seventy-three thousand, seven hundred thirty-six".