71102496385 has 4 divisors (see below), whose sum is σ = 85322995668. Its totient is φ = 56881997104.

The previous prime is 71102496373. The next prime is 71102496403. The reversal of 71102496385 is 58369420117.

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 29278974321 + 41823522064 = 171111^2 + 204508^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71102496385 is a prime.

It is a Duffinian 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, 7110249634 + ... + 7110249643.

It is an arithmetic number, because the mean of its divisors is an integer number (21330748917).

It is a 1-persistent number, because it is pandigital, but 2⋅71102496385 = 142204992770 is not.

Almost surely, 2^71102496385 is an apocalyptic number.

It is an amenable number.

71102496385 is a deficient number, since it is larger than the sum of its proper divisors (14220499283).

71102496385 is a wasteful number, since it uses less digits than its factorization.

71102496385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14220499282.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 71102496385 in words is "seventy-one billion, one hundred two million, four hundred ninety-six thousand, three hundred eighty-five".