70197043734845 has 4 divisors (see below), whose sum is σ = 84236452481820. Its totient is φ = 56157634987872.

The previous prime is 70197043734827. The next prime is 70197043734877. The reversal of 70197043734845 is 54843734079107.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26769220514404 + 43427823220441 = 5173898^2 + 6589979^2 .

It is a cyclic number.

It is not a de Polignac number, because 70197043734845 - 2¹⁸ = 70197043472701 is a prime.

It is a super-2 number, since 2×70197043734845² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7019704373480 + ... + 7019704373489.

It is an arithmetic number, because the mean of its divisors is an integer number (21059113120455).

Almost surely, 2^{70197043734845} is an apocalyptic number.

It is an amenable number.

70197043734845 is a deficient number, since it is larger than the sum of its proper divisors (14039408746975).

70197043734845 is a wasteful number, since it uses less digits than its factorization.

70197043734845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14039408746974.

The product of its (nonzero) digits is 71124480, while the sum is 62.

The spelling of 70197043734845 in words is "seventy trillion, one hundred ninety-seven billion, forty-three million, seven hundred thirty-four thousand, eight hundred forty-five".