138873094828 has 72 divisors (see below), whose sum is σ = 265984426400. Its totient is φ = 63067023360.

The previous prime is 138873094813. The next prime is 138873094847. The reversal of 138873094828 is 828490378831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99265273 + ... + 99266671.

Almost surely, 2^138873094828 is an apocalyptic number.

It is an amenable number.

138873094828 is a deficient number, since it is larger than the sum of its proper divisors (127111331572).

138873094828 is a wasteful number, since it uses less digits than its factorization.

138873094828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835 (or 1744 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 61.

The spelling of 138873094828 in words is "one hundred thirty-eight billion, eight hundred seventy-three million, ninety-four thousand, eight hundred twenty-eight".