50320121644 has 12 divisors (see below), whose sum is σ = 94834075504. Its totient is φ = 23224671504.

The previous prime is 50320121623. The next prime is 50320121701. The reversal of 50320121644 is 44612102305.

It is a super-2 number, since 2×50320121644² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 483847272 + ... + 483847375.

Almost surely, 2^50320121644 is an apocalyptic number.

It is an amenable number.

50320121644 is a deficient number, since it is larger than the sum of its proper divisors (44513953860).

50320121644 is a wasteful number, since it uses less digits than its factorization.

50320121644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967694664 (or 967694662 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 50320121644 its reverse (44612102305), we get a palindrome (94932223949).

The spelling of 50320121644 in words is "fifty billion, three hundred twenty million, one hundred twenty-one thousand, six hundred forty-four".