71803723340 has 192 divisors, whose sum is σ = 165473280000. Its totient is φ = 26104565760.

The previous prime is 71803723261. The next prime is 71803723351. The reversal of 71803723340 is 4332730817.

It is a junction number, because it is equal to n+sod(n) for n = 71803723294 and 71803723303.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 119872361 + ... + 119872959.

It is an arithmetic number, because the mean of its divisors is an integer number (861840000).

Almost surely, 2^71803723340 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 71803723340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82736640000).

71803723340 is an abundant number, since it is smaller than the sum of its proper divisors (93669556660).

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

71803723340 is a wasteful number, since it uses less digits than its factorization.

71803723340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 71803723340 in words is "seventy-one billion, eight hundred three million, seven hundred twenty-three thousand, three hundred forty".