72272740326 has 16 divisors (see below), whose sum is σ = 144670859184. Its totient is φ = 24070017024.

The previous prime is 72272740321. The next prime is 72272740327. The reversal of 72272740326 is 62304727227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72272740321) 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, 5216611 + ... + 5230446.

It is an arithmetic number, because the mean of its divisors is an integer number (9041928699).

Almost surely, 2^72272740326 is an apocalyptic number.

72272740326 is an abundant number, since it is smaller than the sum of its proper divisors (72398118858).

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

72272740326 is a wasteful number, since it uses less digits than its factorization.

72272740326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10448215.

The product of its (nonzero) digits is 395136, while the sum is 42.

The spelling of 72272740326 in words is "seventy-two billion, two hundred seventy-two million, seven hundred forty thousand, three hundred twenty-six".