231718451126472 has 512 divisors, whose sum is σ = 674324103168000. Its totient is φ = 73659461391360.

The previous prime is 231718451126419. The next prime is 231718451126489. The reversal of 231718451126472 is 274621154817132.

It is a happy number.

231718451126472 is a `hidden beast` number, since 2 + 3 + 1 + 7 + 1 + 8 + 45 + 1 + 126 + 472 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 67892893438 + ... + 67892896850.

It is an arithmetic number, because the mean of its divisors is an integer number (1317039264000).

Almost surely, 2^{231718451126472} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231718451126472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337162051584000).

231718451126472 is an abundant number, since it is smaller than the sum of its proper divisors (442605652041528).

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

231718451126472 is a wasteful number, since it uses less digits than its factorization.

231718451126472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4298 (or 4288 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The spelling of 231718451126472 in words is "two hundred thirty-one trillion, seven hundred eighteen billion, four hundred fifty-one million, one hundred twenty-six thousand, four hundred seventy-two".