501139238346 has 24 divisors (see below), whose sum is σ = 1085816702880. Its totient is φ = 167044102056.

The previous prime is 501139238317. The next prime is 501139238387. The reversal of 501139238346 is 643832931105.

501139238346 is a `hidden beast` number, since 501 + 1 + 3 + 9 + 23 + 83 + 46 = 666.

It is a super-2 number, since 2×501139238346² (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 (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1591635 + ... + 1880313.

It is an arithmetic number, because the mean of its divisors is an integer number (45242362620).

Almost surely, 2^501139238346 is an apocalyptic number.

501139238346 is an abundant number, since it is smaller than the sum of its proper divisors (584677464534).

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

501139238346 is a wasteful number, since it uses less digits than its factorization.

501139238346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385130 (or 385127 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 501139238346 in words is "five hundred one billion, one hundred thirty-nine million, two hundred thirty-eight thousand, three hundred forty-six".