72229402574389 has 4 divisors (see below), whose sum is σ = 72229661713260. Its totient is φ = 72229143435520.

The previous prime is 72229402574339. The next prime is 72229402574411. The reversal of 72229402574389 is 98347520492227.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11896635722500 + 60332766851889 = 3449150^2 + 7767417^2 .

It is a cyclic number.

It is not a de Polignac number, because 72229402574389 - 2⁹ = 72229402573877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72229402574389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72229402574339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129150892 + ... + 129708949.

It is an arithmetic number, because the mean of its divisors is an integer number (18057415428315).

Almost surely, 2^{72229402574389} is an apocalyptic number.

It is an amenable number.

72229402574389 is a deficient number, since it is larger than the sum of its proper divisors (259138871).

72229402574389 is a wasteful number, since it uses less digits than its factorization.

72229402574389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259138870.

The product of its (nonzero) digits is 121927680, while the sum is 64.

The spelling of 72229402574389 in words is "seventy-two trillion, two hundred twenty-nine billion, four hundred two million, five hundred seventy-four thousand, three hundred eighty-nine".