72238535741 has 2 divisors, whose sum is σ = 72238535742. Its totient is φ = 72238535740.

The previous prime is 72238535731. The next prime is 72238535771. The reversal of 72238535741 is 14753583227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66095268100 + 6143267641 = 257090^2 + 78379^2 .

It is an emirp because it is prime and its reverse (14753583227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72238535741 - 2²² = 72234341437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72238535731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36119267870 + 36119267871.

It is an arithmetic number, because the mean of its divisors is an integer number (36119267871).

Almost surely, 2^72238535741 is an apocalyptic number.

It is an amenable number.

72238535741 is a deficient number, since it is larger than the sum of its proper divisors (1).

72238535741 is an equidigital number, since it uses as much as digits as its factorization.

72238535741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1411200, while the sum is 47.

The spelling of 72238535741 in words is "seventy-two billion, two hundred thirty-eight million, five hundred thirty-five thousand, seven hundred forty-one".