72085135039 has 2 divisors, whose sum is σ = 72085135040. Its totient is φ = 72085135038.

The previous prime is 72085135033. The next prime is 72085135043. The reversal of 72085135039 is 93053158027.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72085135039 - 2⁵ = 72085135007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72085134986 and 72085135004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72085135033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36042567519 + 36042567520.

It is an arithmetic number, because the mean of its divisors is an integer number (36042567520).

Almost surely, 2^72085135039 is an apocalyptic number.

72085135039 is a deficient number, since it is larger than the sum of its proper divisors (1).

72085135039 is an equidigital number, since it uses as much as digits as its factorization.

72085135039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 72085135039 in words is "seventy-two billion, eighty-five million, one hundred thirty-five thousand, thirty-nine".