501138004808 has 32 divisors (see below), whose sum is σ = 1091471540160. Its totient is φ = 211252553280.

The previous prime is 501138004777. The next prime is 501138004813. The reversal of 501138004808 is 808400831105.

It is a super-2 number, since 2×501138004808² (a number of 24 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 7 ways as a sum of consecutive naturals, for example, 73348166 + ... + 73354997.

It is an arithmetic number, because the mean of its divisors is an integer number (34108485630).

Almost surely, 2^501138004808 is an apocalyptic number.

It is an amenable number.

501138004808 is an abundant number, since it is smaller than the sum of its proper divisors (590333535352).

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

501138004808 is a wasteful number, since it uses less digits than its factorization.

501138004808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146703237 (or 146703233 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The spelling of 501138004808 in words is "five hundred one billion, one hundred thirty-eight million, four thousand, eight hundred eight".