1280257654283 has 4 divisors (see below), whose sum is σ = 1290030613608. Its totient is φ = 1270484694960.

The previous prime is 1280257654253. The next prime is 1280257654337. The reversal of 1280257654283 is 3824567520821.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1280257654283 - 2¹⁴ = 1280257637899 is a prime.

It is a super-2 number, since 2×1280257654283² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1280257654253) 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, 4886479466 + ... + 4886479727.

It is an arithmetic number, because the mean of its divisors is an integer number (322507653402).

Almost surely, 2^{1280257654283} is an apocalyptic number.

1280257654283 is a deficient number, since it is larger than the sum of its proper divisors (9772959325).

1280257654283 is an equidigital number, since it uses as much as digits as its factorization.

1280257654283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9772959324.

The product of its (nonzero) digits is 6451200, while the sum is 53.

The spelling of 1280257654283 in words is "one trillion, two hundred eighty billion, two hundred fifty-seven million, six hundred fifty-four thousand, two hundred eighty-three".