72038510389 has 2 divisors, whose sum is σ = 72038510390. Its totient is φ = 72038510388.

The previous prime is 72038510377. The next prime is 72038510413. The reversal of 72038510389 is 98301583027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60790847364 + 11247663025 = 246558^2 + 106055^2 .

It is a cyclic number.

It is not a de Polignac number, because 72038510389 - 2⁷ = 72038510261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72038510689) 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, 36019255194 + 36019255195.

It is an arithmetic number, because the mean of its divisors is an integer number (36019255195).

Almost surely, 2^72038510389 is an apocalyptic number.

It is an amenable number.

72038510389 is a deficient number, since it is larger than the sum of its proper divisors (1).

72038510389 is an equidigital number, since it uses as much as digits as its factorization.

72038510389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 72038510389 in words is "seventy-two billion, thirty-eight million, five hundred ten thousand, three hundred eighty-nine".