50921671338 has 24 divisors (see below), whose sum is σ = 110337372288. Its totient is φ = 16972800552.

The previous prime is 50921671337. The next prime is 50921671349. The reversal of 50921671338 is 83317612905.

50921671338 is a `hidden beast` number, since 509 + 2 + 1 + 6 + 7 + 133 + 8 = 666.

It is a super-2 number, since 2×50921671338² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50921671293 and 50921671302.

It is not an unprimeable number, because it can be changed into a prime (50921671337) 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 11 ways as a sum of consecutive naturals, for example, 227431 + ... + 391877.

It is an arithmetic number, because the mean of its divisors is an integer number (4597390512).

Almost surely, 2^50921671338 is an apocalyptic number.

50921671338 is an abundant number, since it is smaller than the sum of its proper divisors (59415700950).

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

50921671338 is a wasteful number, since it uses less digits than its factorization.

50921671338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181658 (or 181655 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 50921671338 in words is "fifty billion, nine hundred twenty-one million, six hundred seventy-one thousand, three hundred thirty-eight".