71070788728113 has 4 divisors (see below), whose sum is σ = 94761051637488. Its totient is φ = 47380525818740.

The previous prime is 71070788728111. The next prime is 71070788728187. The reversal of 71070788728113 is 31182788707017.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71070788728113 - 2¹ = 71070788728111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71070788728111) 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, 11845131454683 + ... + 11845131454688.

It is an arithmetic number, because the mean of its divisors is an integer number (23690262909372).

Almost surely, 2^{71070788728113} is an apocalyptic number.

It is an amenable number.

71070788728113 is a deficient number, since it is larger than the sum of its proper divisors (23690262909375).

71070788728113 is a wasteful number, since it uses less digits than its factorization.

71070788728113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23690262909374.

The product of its (nonzero) digits is 7375872, while the sum is 60.

The spelling of 71070788728113 in words is "seventy-one trillion, seventy billion, seven hundred eighty-eight million, seven hundred twenty-eight thousand, one hundred thirteen".