1280647015361 has 8 divisors (see below), whose sum is σ = 1514065437120. Its totient is φ = 1059845805648.

The previous prime is 1280647015357. The next prime is 1280647015399. The reversal of 1280647015361 is 1635107460821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1280647015361 - 2² = 1280647015357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1280647015061) 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 7 ways as a sum of consecutive naturals, for example, 3154302791 + ... + 3154303196.

It is an arithmetic number, because the mean of its divisors is an integer number (189258179640).

Almost surely, 2^{1280647015361} is an apocalyptic number.

It is an amenable number.

1280647015361 is a deficient number, since it is larger than the sum of its proper divisors (233418421759).

1280647015361 is an equidigital number, since it uses as much as digits as its factorization.

1280647015361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6308606023.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 1280647015361 in words is "one trillion, two hundred eighty billion, six hundred forty-seven million, fifteen thousand, three hundred sixty-one".