71843771040 has 96 divisors (see below), whose sum is σ = 227826950400. Its totient is φ = 19029740544.

The previous prime is 71843771011. The next prime is 71843771047. The reversal of 71843771040 is 4017734817.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 71843770983 and 71843771001.

It is not an unprimeable number, because it can be changed into a prime (71843771047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430744 + ... + 573783.

It is an arithmetic number, because the mean of its divisors is an integer number (2373197400).

Almost surely, 2^71843771040 is an apocalyptic number.

It is an amenable number.

71843771040 is an abundant number, since it is smaller than the sum of its proper divisors (155983179360).

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

71843771040 is a wasteful number, since it uses less digits than its factorization.

71843771040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004694 (or 1004686 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 42.

The spelling of 71843771040 in words is "seventy-one billion, eight hundred forty-three million, seven hundred seventy-one thousand, forty".