1040255691693 has 16 divisors (see below), whose sum is σ = 1413251642880. Its totient is φ = 680383139904.

The previous prime is 1040255691689. The next prime is 1040255691707. The reversal of 1040255691693 is 3961965520401.

It is not a de Polignac number, because 1040255691693 - 2² = 1040255691689 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040255291693) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3061380 + ... + 3384162.

It is an arithmetic number, because the mean of its divisors is an integer number (88328227680).

Almost surely, 2^{1040255691693} is an apocalyptic number.

It is an amenable number.

1040255691693 is a deficient number, since it is larger than the sum of its proper divisors (372995951187).

1040255691693 is a wasteful number, since it uses less digits than its factorization.

1040255691693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343108.

The product of its (nonzero) digits is 1749600, while the sum is 51.

The spelling of 1040255691693 in words is "one trillion, forty billion, two hundred fifty-five million, six hundred ninety-one thousand, six hundred ninety-three".