72302380723 has 16 divisors (see below), whose sum is σ = 76792937760. Its totient is φ = 67838557696.

The previous prime is 72302380697. The next prime is 72302380783. The reversal of 72302380723 is 32708320327.

It is a cyclic number.

It is not a de Polignac number, because 72302380723 - 2¹³ = 72302372531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72302380783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7579665 + ... + 7589197.

It is an arithmetic number, because the mean of its divisors is an integer number (4799558610).

Almost surely, 2^72302380723 is an apocalyptic number.

72302380723 is a deficient number, since it is larger than the sum of its proper divisors (4490557037).

72302380723 is a wasteful number, since it uses less digits than its factorization.

72302380723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10886.

The product of its (nonzero) digits is 84672, while the sum is 37.

The spelling of 72302380723 in words is "seventy-two billion, three hundred two million, three hundred eighty thousand, seven hundred twenty-three".