72019038529 has 2 divisors, whose sum is σ = 72019038530. Its totient is φ = 72019038528.

The previous prime is 72019038517. The next prime is 72019038551. The reversal of 72019038529 is 92583091027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65470992129 + 6548046400 = 255873^2 + 80920^2 .

It is a cyclic number.

It is not a de Polignac number, because 72019038529 - 2¹⁵ = 72019005761 is a prime.

It is not a weakly prime, because it can be changed into another prime (72019038569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36009519264 + 36009519265.

It is an arithmetic number, because the mean of its divisors is an integer number (36009519265).

Almost surely, 2^72019038529 is an apocalyptic number.

It is an amenable number.

72019038529 is a deficient number, since it is larger than the sum of its proper divisors (1).

72019038529 is an equidigital number, since it uses as much as digits as its factorization.

72019038529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 72019038529 in words is "seventy-two billion, nineteen million, thirty-eight thousand, five hundred twenty-nine".