71722253720372 has 12 divisors (see below), whose sum is σ = 125562386307456. Its totient is φ = 35847286203960.

The previous prime is 71722253720357. The next prime is 71722253720443. The reversal of 71722253720372 is 27302735222717.

It is a self number, because there is not a number n which added to its sum of digits gives 71722253720372.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3460152398 + ... + 3460173125.

It is an arithmetic number, because the mean of its divisors is an integer number (10463532192288).

Almost surely, 2^{71722253720372} is an apocalyptic number.

It is an amenable number.

71722253720372 is a deficient number, since it is larger than the sum of its proper divisors (53840132587084).

71722253720372 is a wasteful number, since it uses less digits than its factorization.

71722253720372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6920328118 (or 6920328116 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 50.

The spelling of 71722253720372 in words is "seventy-one trillion, seven hundred twenty-two billion, two hundred fifty-three million, seven hundred twenty thousand, three hundred seventy-two".