70643836404 has 36 divisors (see below), whose sum is σ = 186335918496. Its totient is φ = 22524121488.

The previous prime is 70643836399. The next prime is 70643836429. The reversal of 70643836404 is 40463834607.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 70643836404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42658494 + ... + 42660149.

It is an arithmetic number, because the mean of its divisors is an integer number (5175997736).

Almost surely, 2^70643836404 is an apocalyptic number.

It is an amenable number.

70643836404 is an abundant number, since it is smaller than the sum of its proper divisors (115692082092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70643836404 is a wasteful number, since it uses less digits than its factorization.

70643836404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85318676 (or 85318671 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

The spelling of 70643836404 in words is "seventy billion, six hundred forty-three million, eight hundred thirty-six thousand, four hundred four".