86178696434 has 4 divisors (see below), whose sum is σ = 129268044654. Its totient is φ = 43089348216.

The previous prime is 86178696431. The next prime is 86178696463. The reversal of 86178696434 is 43469687168.

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., 80682698209 + 5495998225 = 284047^2 + 74135^2 .

It is not an unprimeable number, because it can be changed into a prime (86178696431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21544674107 + ... + 21544674110.

Almost surely, 2^86178696434 is an apocalyptic number.

86178696434 is a deficient number, since it is larger than the sum of its proper divisors (43089348220).

86178696434 is a wasteful number, since it uses less digits than its factorization.

86178696434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43089348219.

The product of its digits is 41803776, while the sum is 62.

The spelling of 86178696434 in words is "eighty-six billion, one hundred seventy-eight million, six hundred ninety-six thousand, four hundred thirty-four".