23071975637 has 4 divisors (see below), whose sum is σ = 23097082080. Its totient is φ = 23046869196.

The previous prime is 23071975631. The next prime is 23071975673. The reversal of 23071975637 is 73657917032.

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 a cyclic number.

It is not a de Polignac number, because 23071975637 - 2¹² = 23071971541 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 (23071975631) 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, 12551843 + ... + 12553680.

It is an arithmetic number, because the mean of its divisors is an integer number (5774270520).

Almost surely, 2^23071975637 is an apocalyptic number.

It is an amenable number.

23071975637 is a deficient number, since it is larger than the sum of its proper divisors (25106443).

23071975637 is an equidigital number, since it uses as much as digits as its factorization.

23071975637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25106442.

The product of its (nonzero) digits is 1666980, while the sum is 50.

The spelling of 23071975637 in words is "twenty-three billion, seventy-one million, nine hundred seventy-five thousand, six hundred thirty-seven".