88678389986 has 4 divisors (see below), whose sum is σ = 133017584982. Its totient is φ = 44339194992.

The previous prime is 88678389983. The next prime is 88678389997. The reversal of 88678389986 is 68998387688.

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., 49659894025 + 39018495961 = 222845^2 + 197531^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 88678389986.

It is not an unprimeable number, because it can be changed into a prime (88678389983) 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, 22169597495 + ... + 22169597498.

Almost surely, 2^88678389986 is an apocalyptic number.

88678389986 is a deficient number, since it is larger than the sum of its proper divisors (44339194996).

88678389986 is a wasteful number, since it uses less digits than its factorization.

88678389986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44339194995.

The product of its digits is 2006581248, while the sum is 80.

The spelling of 88678389986 in words is "eighty-eight billion, six hundred seventy-eight million, three hundred eighty-nine thousand, nine hundred eighty-six".