1285924879343 has 16 divisors (see below), whose sum is σ = 1409799379296. Its totient is φ = 1165802526720.

The previous prime is 1285924879301. The next prime is 1285924879363. The reversal of 1285924879343 is 3439784295821.

It is not a de Polignac number, because 1285924879343 - 2⁸ = 1285924879087 is a prime.

It is a super-2 number, since 2×1285924879343² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1285924879343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285924879363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3727046 + ... + 4057427.

It is an arithmetic number, because the mean of its divisors is an integer number (88112461206).

Almost surely, 2^{1285924879343} is an apocalyptic number.

1285924879343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1285924879343 is a deficient number, since it is larger than the sum of its proper divisors (123874499953).

1285924879343 is a wasteful number, since it uses less digits than its factorization.

1285924879343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7784714.

The product of its digits is 104509440, while the sum is 65.

The spelling of 1285924879343 in words is "one trillion, two hundred eighty-five billion, nine hundred twenty-four million, eight hundred seventy-nine thousand, three hundred forty-three".