1283560499520 has 1120 divisors, whose sum is σ = 5308710865920. Its totient is φ = 291743907840.

The previous prime is 1283560499503. The next prime is 1283560499579. The reversal of 1283560499520 is 259940653821.

1283560499520 is a `hidden beast` number, since 1 + 2 + 8 + 3 + 5 + 604 + 9 + 9 + 5 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 224749465 + ... + 224755175.

It is an arithmetic number, because the mean of its divisors is an integer number (4739920416).

Almost surely, 2^{1283560499520} is an apocalyptic number.

1283560499520 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 1283560499520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2654355432960).

1283560499520 is an abundant number, since it is smaller than the sum of its proper divisors (4025150366400).

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

1283560499520 is a wasteful number, since it uses less digits than its factorization.

1283560499520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5805 (or 5786 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 1283560499520 in words is "one trillion, two hundred eighty-three billion, five hundred sixty million, four hundred ninety-nine thousand, five hundred twenty".