117427730730 has 128 divisors (see below), whose sum is σ = 296438538240. Its totient is φ = 29713178880.

The previous prime is 117427730671. The next prime is 117427730759. The reversal of 117427730730 is 37037724711.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 75321691 + ... + 75323249.

It is an arithmetic number, because the mean of its divisors is an integer number (2315926080).

Almost surely, 2^117427730730 is an apocalyptic number.

117427730730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 117427730730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148219269120).

117427730730 is an abundant number, since it is smaller than the sum of its proper divisors (179010807510).

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

117427730730 is a wasteful number, since it uses less digits than its factorization.

117427730730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396.

The product of its (nonzero) digits is 172872, while the sum is 42.

The spelling of 117427730730 in words is "one hundred seventeen billion, four hundred twenty-seven million, seven hundred thirty thousand, seven hundred thirty".