72229435739 has 2 divisors, whose sum is σ = 72229435740. Its totient is φ = 72229435738.

The previous prime is 72229435723. The next prime is 72229435741. The reversal of 72229435739 is 93753492227.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72229435739 - 2⁴ = 72229435723 is a prime.

It is a super-2 number, since 2×72229435739² (a number of 23 digits) contains 22 as substring.

Together with 72229435741, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72229435139) 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 as a sum of consecutive naturals, namely, 36114717869 + 36114717870.

It is an arithmetic number, because the mean of its divisors is an integer number (36114717870).

Almost surely, 2^72229435739 is an apocalyptic number.

72229435739 is a deficient number, since it is larger than the sum of its proper divisors (1).

72229435739 is an equidigital number, since it uses as much as digits as its factorization.

72229435739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5715360, while the sum is 53.

The spelling of 72229435739 in words is "seventy-two billion, two hundred twenty-nine million, four hundred thirty-five thousand, seven hundred thirty-nine".