71828949719 has 4 divisors (see below), whose sum is σ = 71837671896. Its totient is φ = 71820227544.

The previous prime is 71828949701. The next prime is 71828949721. The reversal of 71828949719 is 91794982817.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71828949719 - 2²⁰ = 71827901143 is a prime.

It is a super-2 number, since 2×71828949719² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71828949119) 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, 4348724 + ... + 4365209.

It is an arithmetic number, because the mean of its divisors is an integer number (17959417974).

Almost surely, 2^71828949719 is an apocalyptic number.

71828949719 is a deficient number, since it is larger than the sum of its proper divisors (8722177).

71828949719 is an equidigital number, since it uses as much as digits as its factorization.

71828949719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8722176.

The product of its digits is 18289152, while the sum is 65.

The spelling of 71828949719 in words is "seventy-one billion, eight hundred twenty-eight million, nine hundred forty-nine thousand, seven hundred nineteen".