8117234454 has 72 divisors (see below), whose sum is σ = 19931515128. Its totient is φ = 2197117440.

The previous prime is 8117234393. The next prime is 8117234467. The reversal of 8117234454 is 4544327118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 67894 + ... + 144374.

It is an arithmetic number, because the mean of its divisors is an integer number (276826599).

Almost surely, 2^8117234454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8117234454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9965757564).

8117234454 is an abundant number, since it is smaller than the sum of its proper divisors (11814280674).

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

8117234454 is a wasteful number, since it uses less digits than its factorization.

8117234454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76538 (or 76512 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 8117234454 is about 90095.6960903239. The cubic root of 8117234454 is about 2009.7222006610.

The spelling of 8117234454 in words is "eight billion, one hundred seventeen million, two hundred thirty-four thousand, four hundred fifty-four".