69668444378 has 32 divisors (see below), whose sum is σ = 114661894032. Its totient is φ = 31554432000.

The previous prime is 69668444357. The next prime is 69668444381. The reversal of 69668444378 is 87344486696.

It can be written as a sum of positive squares in 8 ways, for example, as 9042678649 + 60625765729 = 95093^2 + 246223^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179348 + ... + 414128.

Almost surely, 2^69668444378 is an apocalyptic number.

69668444378 is a deficient number, since it is larger than the sum of its proper divisors (44993449654).

69668444378 is a wasteful number, since it uses less digits than its factorization.

69668444378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235010.

The product of its digits is 167215104, while the sum is 65.

The spelling of 69668444378 in words is "sixty-nine billion, six hundred sixty-eight million, four hundred forty-four thousand, three hundred seventy-eight".