1282999495680 has 1408 divisors, whose sum is σ = 5447312640000. Its totient is φ = 280178196480.

The previous prime is 1282999495633. The next prime is 1282999495681. The reversal of 1282999495680 is 865949992821.

1282999495680 is a `hidden beast` number, since 1 + 28 + 29 + 99 + 495 + 6 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 1282999495599 and 1282999495608.

It is not an unprimeable number, because it can be changed into a prime (1282999495681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3676216146 + ... + 3676216494.

It is an arithmetic number, because the mean of its divisors is an integer number (3868830000).

Almost surely, 2^{1282999495680} is an apocalyptic number.

1282999495680 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 1282999495680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2723656320000).

1282999495680 is an abundant number, since it is smaller than the sum of its proper divisors (4164313144320).

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

1282999495680 is a wasteful number, since it uses less digits than its factorization.

1282999495680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 201553920, while the sum is 72.

The spelling of 1282999495680 in words is "one trillion, two hundred eighty-two billion, nine hundred ninety-nine million, four hundred ninety-five thousand, six hundred eighty".