128126077057 has 32 divisors (see below), whose sum is σ = 141958344960. Its totient is φ = 114675025920.

The previous prime is 128126077019. The next prime is 128126077127. The reversal of 128126077057 is 750770621821.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128126077057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128126076998 and 128126077016.

It is not an unprimeable number, because it can be changed into a prime (128126074057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198030708 + ... + 198031354.

It is an arithmetic number, because the mean of its divisors is an integer number (4436198280).

Almost surely, 2^128126077057 is an apocalyptic number.

It is an amenable number.

128126077057 is a deficient number, since it is larger than the sum of its proper divisors (13832267903).

128126077057 is a wasteful number, since it uses less digits than its factorization.

128126077057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593.

The product of its (nonzero) digits is 329280, while the sum is 46.

Adding to 128126077057 its reverse (750770621821), we get a palindrome (878896698878).

The spelling of 128126077057 in words is "one hundred twenty-eight billion, one hundred twenty-six million, seventy-seven thousand, fifty-seven".