88138401194 has 4 divisors (see below), whose sum is σ = 132207601794. Its totient is φ = 44069200596.

The previous prime is 88138401191. The next prime is 88138401289. The reversal of 88138401194 is 49110483188.

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

It can be written as a sum of positive squares in only one way, i.e., 59212895569 + 28925505625 = 243337^2 + 170075^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (88138401191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22034600297 + ... + 22034600300.

Almost surely, 2^88138401194 is an apocalyptic number.

88138401194 is a deficient number, since it is larger than the sum of its proper divisors (44069200600).

88138401194 is a wasteful number, since it uses less digits than its factorization.

88138401194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44069200599.

The product of its (nonzero) digits is 221184, while the sum is 47.

The spelling of 88138401194 in words is "eighty-eight billion, one hundred thirty-eight million, four hundred one thousand, one hundred ninety-four".