1145487974400 has 1512 divisors, whose sum is σ = 5211471750264. Its totient is φ = 237817036800.

The previous prime is 1145487974387. The next prime is 1145487974419. The reversal of 1145487974400 is 44797845411.

1145487974400 is a `hidden beast` number, since 1 + 1 + 4 + 548 + 7 + 97 + 4 + 4 + 0 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 993484224 + ... + 993485376.

Almost surely, 2^{1145487974400} is an apocalyptic number.

1145487974400 is a gapful number since it is divisible by the number (10) 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 1145487974400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2605735875132).

1145487974400 is an abundant number, since it is smaller than the sum of its proper divisors (4065983775864).

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

1145487974400 is a wasteful number, since it uses less digits than its factorization.

1145487974400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220 (or 1181 counting only the distinct ones).

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

The spelling of 1145487974400 in words is "one trillion, one hundred forty-five billion, four hundred eighty-seven million, nine hundred seventy-four thousand, four hundred".