9418187461312 has 224 divisors, whose sum is σ = 23585782542336. Its totient is φ = 3638476800000.

The previous prime is 9418187461301. The next prime is 9418187461411. The reversal of 9418187461312 is 2131647818149.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×9418187461312² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22695687 + ... + 23106937.

It is an arithmetic number, because the mean of its divisors is an integer number (105293672064).

Almost surely, 2^{9418187461312} 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 9418187461312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11792891271168).

9418187461312 is an abundant number, since it is smaller than the sum of its proper divisors (14167595081024).

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

9418187461312 is a wasteful number, since it uses less digits than its factorization.

9418187461312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411415 (or 411405 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 55.

The spelling of 9418187461312 in words is "nine trillion, four hundred eighteen billion, one hundred eighty-seven million, four hundred sixty-one thousand, three hundred twelve".