128752762654 has 32 divisors (see below), whose sum is σ = 199367562240. Its totient is φ = 62328349152.

The previous prime is 128752762651. The next prime is 128752762679. The reversal of 128752762654 is 456267257821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 128752762595 and 128752762604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128752762651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6578407 + ... + 6597949.

It is an arithmetic number, because the mean of its divisors is an integer number (6230236320).

Almost surely, 2^128752762654 is an apocalyptic number.

128752762654 is a deficient number, since it is larger than the sum of its proper divisors (70614799586).

128752762654 is a wasteful number, since it uses less digits than its factorization.

128752762654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20344.

The product of its digits is 11289600, while the sum is 55.

The spelling of 128752762654 in words is "one hundred twenty-eight billion, seven hundred fifty-two million, seven hundred sixty-two thousand, six hundred fifty-four".