72395794229 has 6 divisors (see below), whose sum is σ = 79575542550. Its totient is φ = 65814358280.

The previous prime is 72395794199. The next prime is 72395794243. The reversal of 72395794229 is 92249759327.

It can be written as a sum of positive squares in only one way, i.e., 47676722500 + 24719071729 = 218350^2 + 157223^2 .

It is a de Polignac number, because none of the positive numbers 2^k-72395794229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72395794249) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 299156054 + ... + 299156295.

It is an arithmetic number, because the mean of its divisors is an integer number (13262590425).

Almost surely, 2^72395794229 is an apocalyptic number.

It is an amenable number.

72395794229 is a deficient number, since it is larger than the sum of its proper divisors (7179748321).

72395794229 is a wasteful number, since it uses less digits than its factorization.

72395794229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598312371 (or 598312360 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 59.

The spelling of 72395794229 in words is "seventy-two billion, three hundred ninety-five million, seven hundred ninety-four thousand, two hundred twenty-nine".