71704811412 has 96 divisors (see below), whose sum is σ = 205612467200. Its totient is φ = 21466705536.

The previous prime is 71704811407. The next prime is 71704811419. The reversal of 71704811412 is 21411840717.

71704811412 is a `hidden beast` number, since 7 + 170 + 481 + 1 + 4 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71704811419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 638212 + ... + 742107.

Almost surely, 2^71704811412 is an apocalyptic number.

It is an amenable number.

71704811412 is an abundant number, since it is smaller than the sum of its proper divisors (133907655788).

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

71704811412 is a wasteful number, since it uses less digits than its factorization.

71704811412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380382 (or 1380374 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The spelling of 71704811412 in words is "seventy-one billion, seven hundred four million, eight hundred eleven thousand, four hundred twelve".