1280233873928 has 8 divisors (see below), whose sum is σ = 2400438513630. Its totient is φ = 640116936960.

The previous prime is 1280233873901. The next prime is 1280233873949. The reversal of 1280233873928 is 8293783320821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1032829103524 + 247404770404 = 1016282^2 + 497398^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80014617113 + ... + 80014617128.

Almost surely, 2^{1280233873928} is an apocalyptic number.

It is an amenable number.

1280233873928 is a deficient number, since it is larger than the sum of its proper divisors (1120204639702).

1280233873928 is a wasteful number, since it uses less digits than its factorization.

1280233873928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160029234247 (or 160029234243 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 56.

The spelling of 1280233873928 in words is "one trillion, two hundred eighty billion, two hundred thirty-three million, eight hundred seventy-three thousand, nine hundred twenty-eight".