50642081643 has 16 divisors (see below), whose sum is σ = 73238479776. Its totient is φ = 31000412160.

The previous prime is 50642081627. The next prime is 50642081657. The reversal of 50642081643 is 34618024605.

It is not a de Polignac number, because 50642081643 - 2⁴ = 50642081627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50642881643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12107446 + ... + 12111627.

It is an arithmetic number, because the mean of its divisors is an integer number (4577404986).

Almost surely, 2^50642081643 is an apocalyptic number.

50642081643 is a deficient number, since it is larger than the sum of its proper divisors (22596398133).

50642081643 is a wasteful number, since it uses less digits than its factorization.

50642081643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24219134.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 50642081643 in words is "fifty billion, six hundred forty-two million, eighty-one thousand, six hundred forty-three".