1040340815999 has 4 divisors (see below), whose sum is σ = 1041003033240. Its totient is φ = 1039678598760.

The previous prime is 1040340815977. The next prime is 1040340816037. The reversal of 1040340815999 is 9995180430401.

1040340815999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1040340815999 - 2³⁶ = 971621339263 is a prime.

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 1040340815999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040346815999) 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, 331106264 + ... + 331109405.

It is an arithmetic number, because the mean of its divisors is an integer number (260250758310).

Almost surely, 2^{1040340815999} is an apocalyptic number.

1040340815999 is a deficient number, since it is larger than the sum of its proper divisors (662217241).

1040340815999 is an equidigital number, since it uses as much as digits as its factorization.

1040340815999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662217240.

The product of its (nonzero) digits is 1399680, while the sum is 53.

The spelling of 1040340815999 in words is "one trillion, forty billion, three hundred forty million, eight hundred fifteen thousand, nine hundred ninety-nine".