71954349240 has 128 divisors (see below), whose sum is σ = 223163320320. Its totient is φ = 18540787200.

The previous prime is 71954349223. The next prime is 71954349251. The reversal of 71954349240 is 4294345917.

It is a self number, because there is not a number n which added to its sum of digits gives 71954349240.

It is a congruent number.

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, 2504155 + ... + 2532725.

It is an arithmetic number, because the mean of its divisors is an integer number (1743463440).

Almost surely, 2^71954349240 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 71954349240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111581660160).

71954349240 is an abundant number, since it is smaller than the sum of its proper divisors (151208971080).

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

71954349240 is a wasteful number, since it uses less digits than its factorization.

71954349240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29293 (or 29289 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 71954349240 in words is "seventy-one billion, nine hundred fifty-four million, three hundred forty-nine thousand, two hundred forty".