70678043573 has 4 divisors (see below), whose sum is σ = 70678826988. Its totient is φ = 70677260160.

The previous prime is 70678043539. The next prime is 70678043587. The reversal of 70678043573 is 37534087607.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 26553680209 + 44124363364 = 162953^2 + 210058^2 .

It is a cyclic number.

It is not a de Polignac number, because 70678043573 - 2¹² = 70678039477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70678043273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235658 + ... + 443723.

It is an arithmetic number, because the mean of its divisors is an integer number (17669706747).

Almost surely, 2^70678043573 is an apocalyptic number.

It is an amenable number.

70678043573 is a deficient number, since it is larger than the sum of its proper divisors (783415).

70678043573 is a wasteful number, since it uses less digits than its factorization.

70678043573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783414.

The product of its (nonzero) digits is 2963520, while the sum is 50.

The spelling of 70678043573 in words is "seventy billion, six hundred seventy-eight million, forty-three thousand, five hundred seventy-three".