72417573711722 has 16 divisors (see below), whose sum is σ = 108672249834432. Its totient is φ = 36193493626560.

The previous prime is 72417573711697. The next prime is 72417573711727. The reversal of 72417573711722 is 22711737571427.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (72417573711727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44842133 + ... + 46428999.

It is an arithmetic number, because the mean of its divisors is an integer number (6792015614652).

Almost surely, 2^{72417573711722} is an apocalyptic number.

72417573711722 is a deficient number, since it is larger than the sum of its proper divisors (36254676122710).

72417573711722 is a wasteful number, since it uses less digits than its factorization.

72417573711722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596493.

The product of its digits is 8067360, while the sum is 56.

The spelling of 72417573711722 in words is "seventy-two trillion, four hundred seventeen billion, five hundred seventy-three million, seven hundred eleven thousand, seven hundred twenty-two".