70442743513 has 4 divisors (see below), whose sum is σ = 70465202100. Its totient is φ = 70420284928.

The previous prime is 70442743489. The next prime is 70442743531. The reversal of 70442743513 is 31534724407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31534724407 = 5077 ⋅6211291.

It can be written as a sum of positive squares in 2 ways, for example, as 58569808144 + 11872935369 = 242012^2 + 108963^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70442743513 is a prime.

It is a super-2 number, since 2×70442743513² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70442746513) 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, 11224588 + ... + 11230861.

It is an arithmetic number, because the mean of its divisors is an integer number (17616300525).

Almost surely, 2^70442743513 is an apocalyptic number.

It is an amenable number.

70442743513 is a deficient number, since it is larger than the sum of its proper divisors (22458587).

70442743513 is a wasteful number, since it uses less digits than its factorization.

70442743513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22458586.

The product of its (nonzero) digits is 282240, while the sum is 40.

The spelling of 70442743513 in words is "seventy billion, four hundred forty-two million, seven hundred forty-three thousand, five hundred thirteen".