71007734340 has 72 divisors (see below), whose sum is σ = 216248393088. Its totient is φ = 18859944000.

The previous prime is 71007734321. The next prime is 71007734351. The reversal of 71007734340 is 4343770017.

It is a super-2 number, since 2×71007734340² (a number of 23 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 71007734295 and 71007734304.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 740652 + ... + 831011.

It is an arithmetic number, because the mean of its divisors is an integer number (3003449904).

Almost surely, 2^71007734340 is an apocalyptic number.

It is an amenable number.

71007734340 is an abundant number, since it is smaller than the sum of its proper divisors (145240658748).

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

71007734340 is a wasteful number, since it uses less digits than its factorization.

71007734340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571929 (or 1571924 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The spelling of 71007734340 in words is "seventy-one billion, seven million, seven hundred thirty-four thousand, three hundred forty".