188445134651 has 2 divisors, whose sum is σ = 188445134652. Its totient is φ = 188445134650.

The previous prime is 188445134621. The next prime is 188445134671. The reversal of 188445134651 is 156431544881.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 188445134651 - 2⁶ = 188445134587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 188445134651.

It is not a weakly prime, because it can be changed into another prime (188445134621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94222567325 + 94222567326.

It is an arithmetic number, because the mean of its divisors is an integer number (94222567326).

Almost surely, 2^188445134651 is an apocalyptic number.

188445134651 is a deficient number, since it is larger than the sum of its proper divisors (1).

188445134651 is an equidigital number, since it uses as much as digits as its factorization.

188445134651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1843200, while the sum is 50.

The spelling of 188445134651 in words is "one hundred eighty-eight billion, four hundred forty-five million, one hundred thirty-four thousand, six hundred fifty-one".