128476384937 has 2 divisors, whose sum is σ = 128476384938. Its totient is φ = 128476384936.

The previous prime is 128476384859. The next prime is 128476384957. The reversal of 128476384937 is 739483674821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83088639001 + 45387745936 = 288251^2 + 213044^2 .

It is a cyclic number.

It is not a de Polignac number, because 128476384937 - 2¹⁰ = 128476383913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128476384937.

It is not a weakly prime, because it can be changed into another prime (128476384957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64238192468 + 64238192469.

It is an arithmetic number, because the mean of its divisors is an integer number (64238192469).

Almost surely, 2^128476384937 is an apocalyptic number.

It is an amenable number.

128476384937 is a deficient number, since it is larger than the sum of its proper divisors (1).

128476384937 is an equidigital number, since it uses as much as digits as its factorization.

128476384937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48771072, while the sum is 62.

The spelling of 128476384937 in words is "one hundred twenty-eight billion, four hundred seventy-six million, three hundred eighty-four thousand, nine hundred thirty-seven".