71000804740 has 96 divisors (see below), whose sum is σ = 165460377600. Its totient is φ = 25483455360.

The previous prime is 71000804737. The next prime is 71000804741. The reversal of 71000804740 is 4740800017.

It is a super-2 number, since 2×71000804740² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (71000804741) 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, 489541 + ... + 617779.

It is an arithmetic number, because the mean of its divisors is an integer number (1723545600).

Almost surely, 2^71000804740 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 71000804740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82730188800).

71000804740 is an abundant number, since it is smaller than the sum of its proper divisors (94459572860).

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

71000804740 is a wasteful number, since it uses less digits than its factorization.

71000804740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128345 (or 128343 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The spelling of 71000804740 in words is "seventy-one billion, eight hundred four thousand, seven hundred forty".