1280401213712 has 20 divisors (see below), whose sum is σ = 2495632310976. Its totient is φ = 636367068960.

The previous prime is 1280401213711. The next prime is 1280401213727. The reversal of 1280401213712 is 2173121040821.

It is not an unprimeable number, because it can be changed into a prime (1280401213711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239593364 + ... + 239598707.

Almost surely, 2^{1280401213712} is an apocalyptic number.

It is an amenable number.

1280401213712 is a deficient number, since it is larger than the sum of its proper divisors (1215231097264).

1280401213712 is a wasteful number, since it uses less digits than its factorization.

1280401213712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479192246 (or 479192240 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 1280401213712 in words is "one trillion, two hundred eighty billion, four hundred one million, two hundred thirteen thousand, seven hundred twelve".