1204996518138 has 32 divisors (see below), whose sum is σ = 2755900946304. Its totient is φ = 344081820672.

The previous prime is 1204996518127. The next prime is 1204996518181. The reversal of 1204996518138 is 8318156994021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8381995 + ... + 8524542.

It is an arithmetic number, because the mean of its divisors is an integer number (86121904572).

Almost surely, 2^{1204996518138} is an apocalyptic number.

1204996518138 is an abundant number, since it is smaller than the sum of its proper divisors (1550904428166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1204996518138 is a wasteful number, since it uses less digits than its factorization.

1204996518138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16908246.

The product of its (nonzero) digits is 3732480, while the sum is 57.

The spelling of 1204996518138 in words is "one trillion, two hundred four billion, nine hundred ninety-six million, five hundred eighteen thousand, one hundred thirty-eight".