1286712680085 has 48 divisors (see below), whose sum is σ = 2551174928640. Its totient is φ = 587690346240.

The previous prime is 1286712679991. The next prime is 1286712680093. The reversal of 1286712680085 is 5800862176821.

It is not a de Polignac number, because 1286712680085 - 2¹⁵ = 1286712647317 is a prime.

It is a super-4 number, since 4×1286712680085⁴ (a number of 50 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1453401 + ... + 2164670.

It is an arithmetic number, because the mean of its divisors is an integer number (53149477680).

Almost surely, 2^{1286712680085} is an apocalyptic number.

1286712680085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1286712680085 is a deficient number, since it is larger than the sum of its proper divisors (1264462248555).

1286712680085 is a wasteful number, since it uses less digits than its factorization.

1286712680085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3619218 (or 3619215 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 1286712680085 in words is "one trillion, two hundred eighty-six billion, seven hundred twelve million, six hundred eighty thousand, eighty-five".