1518312633312 has 192 divisors, whose sum is σ = 4110402240000. Its totient is φ = 490372392960.

The previous prime is 1518312633283. The next prime is 1518312633347. The reversal of 1518312633312 is 2133362138151.

It is a congruent number.

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, 1487083362 + ... + 1487084382.

It is an arithmetic number, because the mean of its divisors is an integer number (21408345000).

Almost surely, 2^{1518312633312} is an apocalyptic number.

1518312633312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1518312633312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2055201120000).

1518312633312 is an abundant number, since it is smaller than the sum of its proper divisors (2592089606688).

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

1518312633312 is a wasteful number, since it uses less digits than its factorization.

1518312633312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409 (or 2401 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The spelling of 1518312633312 in words is "one trillion, five hundred eighteen billion, three hundred twelve million, six hundred thirty-three thousand, three hundred twelve".