71791138296 has 32 divisors (see below), whose sum is σ = 199419829200. Its totient is φ = 23930379360.

The previous prime is 71791138291. The next prime is 71791138313. The reversal of 71791138296 is 69283119717.

It is a happy number.

71791138296 is a `hidden beast` number, since 7 + 179 + 1 + 1 + 382 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71791138291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166182975 + ... + 166183406.

Almost surely, 2^71791138296 is an apocalyptic number.

It is an amenable number.

71791138296 is an abundant number, since it is smaller than the sum of its proper divisors (127628690904).

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

71791138296 is a wasteful number, since it uses less digits than its factorization.

71791138296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332366396 (or 332366386 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 54.

The spelling of 71791138296 in words is "seventy-one billion, seven hundred ninety-one million, one hundred thirty-eight thousand, two hundred ninety-six".