1318452451316 has 288 divisors, whose sum is σ = 3446444381184. Its totient is φ = 431875584000.

The previous prime is 1318452451307. The next prime is 1318452451331. The reversal of 1318452451316 is 6131542548131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14726126 + ... + 14815386.

It is an arithmetic number, because the mean of its divisors is an integer number (11966820768).

Almost surely, 2^{1318452451316} 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 1318452451316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1723222190592).

1318452451316 is an abundant number, since it is smaller than the sum of its proper divisors (2127991929868).

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

1318452451316 is a wasteful number, since it uses less digits than its factorization.

1318452451316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89351 (or 89342 counting only the distinct ones).

The product of its digits is 345600, while the sum is 44.

Adding to 1318452451316 its reverse (6131542548131), we get a palindrome (7449994999447).

The spelling of 1318452451316 in words is "one trillion, three hundred eighteen billion, four hundred fifty-two million, four hundred fifty-one thousand, three hundred sixteen".