35673249809 has 4 divisors (see below), whose sum is σ = 35741721060. Its totient is φ = 35604778560.

The previous prime is 35673249749. The next prime is 35673249841. The reversal of 35673249809 is 90894237653.

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 21932721409 + 13740528400 = 148097^2 + 117220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35673249809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35673249109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34234844 + ... + 34235885.

It is an arithmetic number, because the mean of its divisors is an integer number (8935430265).

Almost surely, 2^35673249809 is an apocalyptic number.

It is an amenable number.

35673249809 is a deficient number, since it is larger than the sum of its proper divisors (68471251).

35673249809 is an equidigital number, since it uses as much as digits as its factorization.

35673249809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68471250.

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 35673249809 in words is "thirty-five billion, six hundred seventy-three million, two hundred forty-nine thousand, eight hundred nine".