128522497937 has 2 divisors, whose sum is σ = 128522497938. Its totient is φ = 128522497936.

The previous prime is 128522497927. The next prime is 128522497969. The reversal of 128522497937 is 739794225821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84741538816 + 43780959121 = 291104^2 + 209239^2 .

It is a cyclic number.

It is not a de Polignac number, because 128522497937 - 2⁴ = 128522497921 is a prime.

It is not a weakly prime, because it can be changed into another prime (128522497907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64261248968 + 64261248969.

It is an arithmetic number, because the mean of its divisors is an integer number (64261248969).

Almost surely, 2^128522497937 is an apocalyptic number.

It is an amenable number.

128522497937 is a deficient number, since it is larger than the sum of its proper divisors (1).

128522497937 is an equidigital number, since it uses as much as digits as its factorization.

128522497937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 59.

The spelling of 128522497937 in words is "one hundred twenty-eight billion, five hundred twenty-two million, four hundred ninety-seven thousand, nine hundred thirty-seven".