1280922435760 has 40 divisors (see below), whose sum is σ = 3248885089296. Its totient is φ = 465789976320.

The previous prime is 1280922435677. The next prime is 1280922435769. The reversal of 1280922435760 is 675342290821.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1280922435769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 727795959 + ... + 727797718.

It is a 1-persistent number, because it is pandigital, but 2⋅1280922435760 = 2561844871520 is not.

Almost surely, 2^{1280922435760} is an apocalyptic number.

1280922435760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1280922435760 is an abundant number, since it is smaller than the sum of its proper divisors (1967962653536).

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

1280922435760 is a wasteful number, since it uses less digits than its factorization.

1280922435760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455593701 (or 1455593695 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 1280922435760 in words is "one trillion, two hundred eighty billion, nine hundred twenty-two million, four hundred thirty-five thousand, seven hundred sixty".