35981023609 has 2 divisors, whose sum is σ = 35981023610. Its totient is φ = 35981023608.

The previous prime is 35981023597. The next prime is 35981023619. The reversal of 35981023609 is 90632018953.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33930745209 + 2050278400 = 184203^2 + 45280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35981023609 is a prime.

It is not a weakly prime, because it can be changed into another prime (35981023619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17990511804 + 17990511805.

It is an arithmetic number, because the mean of its divisors is an integer number (17990511805).

Almost surely, 2^35981023609 is an apocalyptic number.

It is an amenable number.

35981023609 is a deficient number, since it is larger than the sum of its proper divisors (1).

35981023609 is an equidigital number, since it uses as much as digits as its factorization.

35981023609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 35981023609 in words is "thirty-five billion, nine hundred eighty-one million, twenty-three thousand, six hundred nine".