71150839369 has 4 divisors (see below), whose sum is σ = 72805510096. Its totient is φ = 69496168644.

The previous prime is 71150839363. The next prime is 71150839391. The reversal of 71150839369 is 96393805117.

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 a de Polignac number, because none of the positive numbers 2^k-71150839369 is a prime.

It is a super-2 number, since 2×71150839369² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71150839363) 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, 827335299 + ... + 827335384.

It is an arithmetic number, because the mean of its divisors is an integer number (18201377524).

Almost surely, 2^71150839369 is an apocalyptic number.

It is an amenable number.

71150839369 is a deficient number, since it is larger than the sum of its proper divisors (1654670727).

71150839369 is a wasteful number, since it uses less digits than its factorization.

71150839369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654670726.

The product of its (nonzero) digits is 1224720, while the sum is 52.

The spelling of 71150839369 in words is "seventy-one billion, one hundred fifty million, eight hundred thirty-nine thousand, three hundred sixty-nine".