117738405426 has 8 divisors (see below), whose sum is σ = 235476810864. Its totient is φ = 39246135140.

The previous prime is 117738405419. The next prime is 117738405427. The reversal of 117738405426 is 624504837711.

It is a sphenic number, since it is the product of 3 distinct primes.

117738405426 is an admirable number.

It is a super-2 number, since 2×117738405426² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117738405427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9811533780 + ... + 9811533791.

It is an arithmetic number, because the mean of its divisors is an integer number (29434601358).

Almost surely, 2^117738405426 is an apocalyptic number.

117738405426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

117738405426 is a wasteful number, since it uses less digits than its factorization.

117738405426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19623067576.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 117738405426 in words is "one hundred seventeen billion, seven hundred thirty-eight million, four hundred five thousand, four hundred twenty-six".