71044471008 has 192 divisors, whose sum is σ = 238008960000. Its totient is φ = 20196076032.

The previous prime is 71044470953. The next prime is 71044471051. The reversal of 71044471008 is 80017444017.

71044471008 is a `hidden beast` number, since 7 + 104 + 447 + 100 + 8 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1174038 + ... + 1233066.

It is an arithmetic number, because the mean of its divisors is an integer number (1239630000).

Almost surely, 2^71044471008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71044471008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119004480000).

71044471008 is an abundant number, since it is smaller than the sum of its proper divisors (166964488992).

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

71044471008 is a wasteful number, since it uses less digits than its factorization.

71044471008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59254 (or 59240 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The spelling of 71044471008 in words is "seventy-one billion, forty-four million, four hundred seventy-one thousand, eight".