117438451871 has 8 divisors (see below), whose sum is σ = 126516579504. Its totient is φ = 108366667200.

The previous prime is 117438451847. The next prime is 117438451873. The reversal of 117438451871 is 178154834711.

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

It is a cyclic number.

It is not a de Polignac number, because 117438451871 - 2³⁴ = 100258582687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117438451873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1547246 + ... + 1621371.

It is an arithmetic number, because the mean of its divisors is an integer number (15814572438).

Almost surely, 2^117438451871 is an apocalyptic number.

117438451871 is a deficient number, since it is larger than the sum of its proper divisors (9078127633).

117438451871 is a wasteful number, since it uses less digits than its factorization.

117438451871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171481.

The product of its digits is 752640, while the sum is 50.

The spelling of 117438451871 in words is "one hundred seventeen billion, four hundred thirty-eight million, four hundred fifty-one thousand, eight hundred seventy-one".