9391412871 has 6 divisors (see below), whose sum is σ = 13565374160. Its totient is φ = 6260941908.

The previous prime is 9391412813. The next prime is 9391412873. The reversal of 9391412871 is 1782141939.

It is not a de Polignac number, because 9391412871 - 2¹¹ = 9391410823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9391412873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 521745151 + ... + 521745168.

Almost surely, 2^9391412871 is an apocalyptic number.

9391412871 is a deficient number, since it is larger than the sum of its proper divisors (4173961289).

9391412871 is a wasteful number, since it uses less digits than its factorization.

9391412871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043490325 (or 1043490322 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 9391412871 is about 96909.3022934331. The cubic root of 9391412871 is about 2109.8114482277.

The spelling of 9391412871 in words is "nine billion, three hundred ninety-one million, four hundred twelve thousand, eight hundred seventy-one".