117021804438 has 64 divisors (see below), whose sum is σ = 291993361920. Its totient is φ = 30374572800.

The previous prime is 117021804413. The next prime is 117021804467. The reversal of 117021804438 is 834408120711.

It is a junction number, because it is equal to n+sod(n) for n = 117021804396 and 117021804405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 598708 + ... + 769736.

It is an arithmetic number, because the mean of its divisors is an integer number (4562396280).

Almost surely, 2^117021804438 is an apocalyptic number.

117021804438 is an abundant number, since it is smaller than the sum of its proper divisors (174971557482).

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

117021804438 is a wasteful number, since it uses less digits than its factorization.

117021804438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172533.

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 117021804438 in words is "one hundred seventeen billion, twenty-one million, eight hundred four thousand, four hundred thirty-eight".