71345111238 has 12 divisors (see below), whose sum is σ = 154581074388. Its totient is φ = 23781703740.

The previous prime is 71345111209. The next prime is 71345111263. The reversal of 71345111238 is 83211154317.

71345111238 is a `hidden beast` number, since 7 + 13 + 4 + 511 + 123 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1981808628 + ... + 1981808663.

It is an arithmetic number, because the mean of its divisors is an integer number (12881756199).

Almost surely, 2^71345111238 is an apocalyptic number.

71345111238 is an abundant number, since it is smaller than the sum of its proper divisors (83235963150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71345111238 is a wasteful number, since it uses less digits than its factorization.

71345111238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3963617299 (or 3963617296 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The spelling of 71345111238 in words is "seventy-one billion, three hundred forty-five million, one hundred eleven thousand, two hundred thirty-eight".