23837600197 has 2 divisors, whose sum is σ = 23837600198. Its totient is φ = 23837600196.

The previous prime is 23837600183. The next prime is 23837600287. The reversal of 23837600197 is 79100673832.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23835036996 + 2563201 = 154386^2 + 1601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23837600197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23837600147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11918800098 + 11918800099.

It is an arithmetic number, because the mean of its divisors is an integer number (11918800099).

Almost surely, 2^23837600197 is an apocalyptic number.

It is an amenable number.

23837600197 is a deficient number, since it is larger than the sum of its proper divisors (1).

23837600197 is an equidigital number, since it uses as much as digits as its factorization.

23837600197 is an evil number, because the sum of its binary digits is even.

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

The spelling of 23837600197 in words is "twenty-three billion, eight hundred thirty-seven million, six hundred thousand, one hundred ninety-seven".