1042253439999 has 8 divisors (see below), whose sum is σ = 1421989189632. Its totient is φ = 678676658520.

The previous prime is 1042253439949. The next prime is 1042253440013. The reversal of 1042253439999 is 9999343522401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1042253439999 - 2¹⁷ = 1042253308927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042253439949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4039741887 + ... + 4039742144.

It is an arithmetic number, because the mean of its divisors is an integer number (177748648704).

Almost surely, 2^{1042253439999} is an apocalyptic number.

1042253439999 is a deficient number, since it is larger than the sum of its proper divisors (379735749633).

1042253439999 is an equidigital number, since it uses as much as digits as its factorization.

1042253439999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8079484077.

The product of its (nonzero) digits is 18895680, while the sum is 60.

The spelling of 1042253439999 in words is "one trillion, forty-two billion, two hundred fifty-three million, four hundred thirty-nine thousand, nine hundred ninety-nine".