1218982450752 has 448 divisors, whose sum is σ = 3986023219200. Its totient is φ = 362202624000.

The previous prime is 1218982450727. The next prime is 1218982450769. The reversal of 1218982450752 is 2570542898121.

It is a happy number.

1218982450752 is a `hidden beast` number, since 1 + 2 + 1 + 8 + 9 + 82 + 4 + 507 + 52 = 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 63 ways as a sum of consecutive naturals, for example, 257765124 + ... + 257769852.

Almost surely, 2^{1218982450752} is an apocalyptic number.

1218982450752 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 1218982450752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1993011609600).

1218982450752 is an abundant number, since it is smaller than the sum of its proper divisors (2767040768448).

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

1218982450752 is a wasteful number, since it uses less digits than its factorization.

1218982450752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5023 (or 5007 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 1218982450752 in words is "one trillion, two hundred eighteen billion, nine hundred eighty-two million, four hundred fifty thousand, seven hundred fifty-two".