23785361887771 has 4 divisors (see below), whose sum is σ = 25947667513944. Its totient is φ = 21623056261600.

The previous prime is 23785361887697. The next prime is 23785361887871. The reversal of 23785361887771 is 17778816358732.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23785361887771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23785361887694 and 23785361887703.

It is not an unprimeable number, because it can be changed into a prime (23785361887471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081152813070 + ... + 1081152813091.

It is an arithmetic number, because the mean of its divisors is an integer number (6486916878486).

Almost surely, 2^{23785361887771} is an apocalyptic number.

23785361887771 is a deficient number, since it is larger than the sum of its proper divisors (2162305626173).

23785361887771 is a wasteful number, since it uses less digits than its factorization.

23785361887771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162305626172.

The product of its digits is 663828480, while the sum is 73.

The spelling of 23785361887771 in words is "twenty-three trillion, seven hundred eighty-five billion, three hundred sixty-one million, eight hundred eighty-seven thousand, seven hundred seventy-one".