1286458512680 has 32 divisors (see below), whose sum is σ = 3157670895840. Its totient is φ = 467803095360.

The previous prime is 1286458512617. The next prime is 1286458512721. The reversal of 1286458512680 is 862158546821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1461884234 + ... + 1461885113.

It is an arithmetic number, because the mean of its divisors is an integer number (98677215495).

Almost surely, 2^{1286458512680} is an apocalyptic number.

1286458512680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1286458512680 is an abundant number, since it is smaller than the sum of its proper divisors (1871212383160).

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

1286458512680 is a wasteful number, since it uses less digits than its factorization.

1286458512680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2923769369 (or 2923769365 counting only the distinct ones).

The product of its (nonzero) digits is 7372800, while the sum is 56.

The spelling of 1286458512680 in words is "one trillion, two hundred eighty-six billion, four hundred fifty-eight million, five hundred twelve thousand, six hundred eighty".