126128522887 has 2 divisors, whose sum is σ = 126128522888. Its totient is φ = 126128522886.

The previous prime is 126128522867. The next prime is 126128522939. The reversal of 126128522887 is 788225821621.

It is a happy number.

It is an a-pointer prime, because the next prime (126128522939) can be obtained adding 126128522887 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126128522887 - 2¹⁵ = 126128490119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126128522827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63064261443 + 63064261444.

It is an arithmetic number, because the mean of its divisors is an integer number (63064261444).

Almost surely, 2^126128522887 is an apocalyptic number.

126128522887 is a deficient number, since it is larger than the sum of its proper divisors (1).

126128522887 is an equidigital number, since it uses as much as digits as its factorization.

126128522887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1720320, while the sum is 52.

The spelling of 126128522887 in words is "one hundred twenty-six billion, one hundred twenty-eight million, five hundred twenty-two thousand, eight hundred eighty-seven".