72335949449 has 2 divisors, whose sum is σ = 72335949450. Its totient is φ = 72335949448.

The previous prime is 72335949431. The next prime is 72335949481. The reversal of 72335949449 is 94494953327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60005401600 + 12330547849 = 244960^2 + 111043^2 .

It is a cyclic number.

It is not a de Polignac number, because 72335949449 - 2³² = 68040982153 is a prime.

It is not a weakly prime, because it can be changed into another prime (72335949649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36167974724 + 36167974725.

It is an arithmetic number, because the mean of its divisors is an integer number (36167974725).

Almost surely, 2^72335949449 is an apocalyptic number.

It is an amenable number.

72335949449 is a deficient number, since it is larger than the sum of its proper divisors (1).

72335949449 is an equidigital number, since it uses as much as digits as its factorization.

72335949449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29393280, while the sum is 59.

The spelling of 72335949449 in words is "seventy-two billion, three hundred thirty-five million, nine hundred forty-nine thousand, four hundred forty-nine".