23758641787 has 2 divisors, whose sum is σ = 23758641788. Its totient is φ = 23758641786.

The previous prime is 23758641763. The next prime is 23758641793. The reversal of 23758641787 is 78714685732.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23758641787 is a prime.

It is a super-3 number, since 3×23758641787³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (23758641287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11879320893 + 11879320894.

It is an arithmetic number, because the mean of its divisors is an integer number (11879320894).

Almost surely, 2^23758641787 is an apocalyptic number.

23758641787 is a deficient number, since it is larger than the sum of its proper divisors (1).

23758641787 is an equidigital number, since it uses as much as digits as its factorization.

23758641787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15805440, while the sum is 58.

The spelling of 23758641787 in words is "twenty-three billion, seven hundred fifty-eight million, six hundred forty-one thousand, seven hundred eighty-seven".