501139238347 has 16 divisors (see below), whose sum is σ = 551738752992. Its totient is φ = 451396408320.

The previous prime is 501139238317. The next prime is 501139238387. The reversal of 501139238347 is 743832931105.

It is a de Polignac number, because none of the positive numbers 2^k-501139238347 is a prime.

It is a super-2 number, since 2×501139238347² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 501139238297 and 501139238306.

It is not an unprimeable number, because it can be changed into a prime (501139238317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198613 + ... + 1020649.

It is an arithmetic number, because the mean of its divisors is an integer number (34483672062).

Almost surely, 2^501139238347 is an apocalyptic number.

501139238347 is a deficient number, since it is larger than the sum of its proper divisors (50599514645).

501139238347 is a wasteful number, since it uses less digits than its factorization.

501139238347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822558.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 501139238347 in words is "five hundred one billion, one hundred thirty-nine million, two hundred thirty-eight thousand, three hundred forty-seven".