117971742450 has 24 divisors (see below), whose sum is σ = 292569921648. Its totient is φ = 31459131280.

The previous prime is 117971742407. The next prime is 117971742461. The reversal of 117971742450 is 54247179711.

It is a self number, because there is not a number n which added to its sum of digits gives 117971742450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 393238992 + ... + 393239291.

It is an arithmetic number, because the mean of its divisors is an integer number (12190413402).

Almost surely, 2^117971742450 is an apocalyptic number.

117971742450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117971742450 is an abundant number, since it is smaller than the sum of its proper divisors (174598179198).

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

117971742450 is a wasteful number, since it uses less digits than its factorization.

117971742450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786478298 (or 786478293 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 48.

The spelling of 117971742450 in words is "one hundred seventeen billion, nine hundred seventy-one million, seven hundred forty-two thousand, four hundred fifty".