501073194438 has 12 divisors (see below), whose sum is σ = 1085658587988. Its totient is φ = 167024398140.

The previous prime is 501073194421. The next prime is 501073194439. The reversal of 501073194438 is 834491370105.

501073194438 is a `hidden beast` number, since 50 + 10 + 73 + 1 + 94 + 438 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 501073194393 and 501073194402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501073194439) 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 5 ways as a sum of consecutive naturals, for example, 13918699828 + ... + 13918699863.

It is an arithmetic number, because the mean of its divisors is an integer number (90471548999).

Almost surely, 2^501073194438 is an apocalyptic number.

501073194438 is an abundant number, since it is smaller than the sum of its proper divisors (584585393550).

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

501073194438 is a wasteful number, since it uses less digits than its factorization.

501073194438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27837399699 (or 27837399696 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 501073194438 in words is "five hundred one billion, seventy-three million, one hundred ninety-four thousand, four hundred thirty-eight".