71828591361 has 16 divisors (see below), whose sum is σ = 96025554240. Its totient is φ = 47758740480.

The previous prime is 71828591357. The next prime is 71828591381. The reversal of 71828591361 is 16319582817.

It is not a de Polignac number, because 71828591361 - 2² = 71828591357 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71828591311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8594961 + ... + 8603313.

It is an arithmetic number, because the mean of its divisors is an integer number (6001597140).

Almost surely, 2^71828591361 is an apocalyptic number.

It is an amenable number.

71828591361 is a deficient number, since it is larger than the sum of its proper divisors (24196962879).

71828591361 is a wasteful number, since it uses less digits than its factorization.

71828591361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15616.

The product of its digits is 725760, while the sum is 51.

The spelling of 71828591361 in words is "seventy-one billion, eight hundred twenty-eight million, five hundred ninety-one thousand, three hundred sixty-one".