1158204253238 has 4 divisors (see below), whose sum is σ = 1737306379860. Its totient is φ = 579102126618.

The previous prime is 1158204253223. The next prime is 1158204253247. The reversal of 1158204253238 is 8323524028511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 289551063308 + ... + 289551063311.

It is an arithmetic number, because the mean of its divisors is an integer number (434326594965).

Almost surely, 2^{1158204253238} is an apocalyptic number.

1158204253238 is a deficient number, since it is larger than the sum of its proper divisors (579102126622).

1158204253238 is an equidigital number, since it uses as much as digits as its factorization.

1158204253238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579102126621.

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 1158204253238 in words is "one trillion, one hundred fifty-eight billion, two hundred four million, two hundred fifty-three thousand, two hundred thirty-eight".