50841681361 has 9 divisors (see below), whose sum is σ = 51056566281. Its totient is φ = 50627699892.

The previous prime is 50841681337. The next prime is 50841681391. The reversal of 50841681361 is 16318614805.

The square root of 50841681361 is 225481.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-50841681361 is a prime.

It is a super-2 number, since 2×50841681361² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50841681311) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 104397460 + ... + 104397946.

It is an arithmetic number, because the mean of its divisors is an integer number (5672951809).

Almost surely, 2^50841681361 is an apocalyptic number.

50841681361 is the 225481-st square number.

50841681361 is the 112741-st centered octagonal number.

It is an amenable number.

50841681361 is a deficient number, since it is larger than the sum of its proper divisors (214884920).

50841681361 is an frugal number, since it uses more digits than its factorization.

50841681361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900 (or 950 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 50841681361 in words is "fifty billion, eight hundred forty-one million, six hundred eighty-one thousand, three hundred sixty-one".