71000804736 has 48 divisors (see below), whose sum is σ = 204312214860. Its totient is φ = 23666934528.

The previous prime is 71000804729. The next prime is 71000804737. The reversal of 71000804736 is 63740800017.

71000804736 is a `hidden beast` number, since 7 + 100 + 0 + 80 + 473 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×71000804736² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 71000804736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71000804737) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30815170 + ... + 30817473.

Almost surely, 2^71000804736 is an apocalyptic number.

It is an amenable number.

71000804736 is an abundant number, since it is smaller than the sum of its proper divisors (133311410124).

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

71000804736 is a wasteful number, since it uses less digits than its factorization.

71000804736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61632663 (or 61632648 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 71000804736 in words is "seventy-one billion, eight hundred four thousand, seven hundred thirty-six".