538497794835 has 576 divisors, whose sum is σ = 1325952561024. Its totient is φ = 198567936000.

The previous prime is 538497794827. The next prime is 538497794881.

538497794835 is a `hidden beast` number, since 5 + 38 + 49 + 7 + 79 + 483 + 5 = 666.

538497794835 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 538497794835 - 2³ = 538497794827 is a prime.

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 575 ways as a sum of consecutive naturals, for example, 1178331927 + ... + 1178332383.

It is an arithmetic number, because the mean of its divisors is an integer number (2302000974).

Almost surely, 2^538497794835 is an apocalyptic number.

538497794835 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

538497794835 is an abundant number, since it is smaller than the sum of its proper divisors (787454766189).

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

538497794835 is a wasteful number, since it uses less digits than its factorization.

538497794835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 634 counting only the distinct ones).

The product of its digits is 914457600, while the sum is 72.

The spelling of 538497794835 in words is "five hundred thirty-eight billion, four hundred ninety-seven million, seven hundred ninety-four thousand, eight hundred thirty-five".