23609781037 has 4 divisors (see below), whose sum is σ = 24636293280. Its totient is φ = 22583268796.

The previous prime is 23609781011. The next prime is 23609781043. The reversal of 23609781037 is 73018790632.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23609781037 - 2¹⁵ = 23609748269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23609751037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513256087 + ... + 513256132.

It is an arithmetic number, because the mean of its divisors is an integer number (6159073320).

Almost surely, 2^23609781037 is an apocalyptic number.

It is an amenable number.

23609781037 is a deficient number, since it is larger than the sum of its proper divisors (1026512243).

23609781037 is a wasteful number, since it uses less digits than its factorization.

23609781037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026512242.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 23609781037 in words is "twenty-three billion, six hundred nine million, seven hundred eighty-one thousand, thirty-seven".