71726906394 has 192 divisors, whose sum is σ = 189039771648. Its totient is φ = 19357315200.

The previous prime is 71726906359. The next prime is 71726906399. The reversal of 71726906394 is 49360962717.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 71726906394.

It is not an unprimeable number, because it can be changed into a prime (71726906399) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 30559929 + ... + 30562275.

It is an arithmetic number, because the mean of its divisors is an integer number (984582144).

Almost surely, 2^71726906394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71726906394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94519885824).

71726906394 is an abundant number, since it is smaller than the sum of its proper divisors (117312865254).

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

71726906394 is a wasteful number, since it uses less digits than its factorization.

71726906394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793 (or 2790 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The spelling of 71726906394 in words is "seventy-one billion, seven hundred twenty-six million, nine hundred six thousand, three hundred ninety-four".