71816994704 has 160 divisors (see below), whose sum is σ = 174024528384. Its totient is φ = 27953786880.

The previous prime is 71816994671. The next prime is 71816994797. The reversal of 71816994704 is 40749961817.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a self number, because there is not a number n which added to its sum of digits gives 71816994704.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87262037 + ... + 87262859.

Almost surely, 2^71816994704 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 71816994704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87012264192).

71816994704 is an abundant number, since it is smaller than the sum of its proper divisors (102207533680).

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

71816994704 is a wasteful number, since it uses less digits than its factorization.

71816994704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745 (or 1739 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 56.

The spelling of 71816994704 in words is "seventy-one billion, eight hundred sixteen million, nine hundred ninety-four thousand, seven hundred four".