36725419009 has 4 divisors (see below), whose sum is σ = 36729216004. Its totient is φ = 36721622016.

The previous prime is 36725418979. The next prime is 36725419013. The reversal of 36725419009 is 90091452763.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6544001025 + 30181417984 = 80895^2 + 173728^2 .

It is a cyclic number.

It is not a de Polignac number, because 36725419009 - 2³⁵ = 2365680641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36725419009.

It is not an unprimeable number, because it can be changed into a prime (36725419309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1883952 + ... + 1903345.

It is an arithmetic number, because the mean of its divisors is an integer number (9182304001).

Almost surely, 2^36725419009 is an apocalyptic number.

It is an amenable number.

36725419009 is a deficient number, since it is larger than the sum of its proper divisors (3796995).

36725419009 is an equidigital number, since it uses as much as digits as its factorization.

36725419009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3796994.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 36725419009 in words is "thirty-six billion, seven hundred twenty-five million, four hundred nineteen thousand, nine".