501943419642 has 128 divisors (see below), whose sum is σ = 1233775872000. Its totient is φ = 135704999808.

The previous prime is 501943419641. The next prime is 501943419647. The reversal of 501943419642 is 246914349105.

It is a super-2 number, since 2×501943419642² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 501943419591 and 501943419600.

It is not an unprimeable number, because it can be changed into a prime (501943419641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35458438 + ... + 35472590.

It is an arithmetic number, because the mean of its divisors is an integer number (9638874000).

Almost surely, 2^501943419642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501943419642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (616887936000).

501943419642 is an abundant number, since it is smaller than the sum of its proper divisors (731832452358).

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

501943419642 is a wasteful number, since it uses less digits than its factorization.

501943419642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15105 (or 15091 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 501943419642 in words is "five hundred one billion, nine hundred forty-three million, four hundred nineteen thousand, six hundred forty-two".