67873785725 has 6 divisors (see below), whose sum is σ = 84163494330. Its totient is φ = 54299028560.

The previous prime is 67873785713. The next prime is 67873785737. The reversal of 67873785725 is 52758737876.

It is an interprime number because it is at equal distance from previous prime (67873785713) and next prime (67873785737).

It can be written as a sum of positive squares in 3 ways, for example, as 2367990244 + 65505795481 = 48662^2 + 255941^2 .

It is not a de Polignac number, because 67873785725 - 2²⁴ = 67857008509 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1357475690 + ... + 1357475739.

It is an arithmetic number, because the mean of its divisors is an integer number (14027249055).

Almost surely, 2^67873785725 is an apocalyptic number.

It is an amenable number.

67873785725 is a deficient number, since it is larger than the sum of its proper divisors (16289708605).

67873785725 is a wasteful number, since it uses less digits than its factorization.

67873785725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2714951439 (or 2714951434 counting only the distinct ones).

The product of its digits is 138297600, while the sum is 65.

The spelling of 67873785725 in words is "sixty-seven billion, eight hundred seventy-three million, seven hundred eighty-five thousand, seven hundred twenty-five".