112861721754 has 12 divisors (see below), whose sum is σ = 244533730506. Its totient is φ = 37620573912.

The previous prime is 112861721747. The next prime is 112861721767. The reversal of 112861721754 is 457127168211.

112861721754 is a `hidden beast` number, since 1 + 1 + 2 + 8 + 617 + 21 + 7 + 5 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 66540782025 + 46320939729 = 257955^2 + 215223^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3135047809 + ... + 3135047844.

Almost surely, 2^112861721754 is an apocalyptic number.

112861721754 is an abundant number, since it is smaller than the sum of its proper divisors (131672008752).

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

112861721754 is a wasteful number, since it uses less digits than its factorization.

112861721754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6270095661 (or 6270095658 counting only the distinct ones).

The product of its digits is 188160, while the sum is 45.

Adding to 112861721754 its reverse (457127168211), we get a palindrome (569988889965).

The spelling of 112861721754 in words is "one hundred twelve billion, eight hundred sixty-one million, seven hundred twenty-one thousand, seven hundred fifty-four".