70638000844 has 24 divisors (see below), whose sum is σ = 129008291328. Its totient is φ = 33778897680.

The previous prime is 70638000841. The next prime is 70638000863. The reversal of 70638000844 is 44800083607.

It is a junction number, because it is equal to n+sod(n) for n = 70638000797 and 70638000806.

It is not an unprimeable number, because it can be changed into a prime (70638000841) 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 in 7 ways as a sum of consecutive naturals, for example, 704749 + ... + 798715.

It is an arithmetic number, because the mean of its divisors is an integer number (5375345472).

Almost surely, 2^70638000844 is an apocalyptic number.

It is an amenable number.

70638000844 is a deficient number, since it is larger than the sum of its proper divisors (58370290484).

70638000844 is a wasteful number, since it uses less digits than its factorization.

70638000844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102165 (or 102163 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 70638000844 in words is "seventy billion, six hundred thirty-eight million, eight hundred forty-four", and thus it is an aban number.