128476384936 has 32 divisors (see below), whose sum is σ = 261957027240. Its totient is φ = 58825433088.

The previous prime is 128476384859. The next prime is 128476384937. The reversal of 128476384936 is 639483674821.

It can be written as a sum of positive squares in 4 ways, for example, as 124260480036 + 4215904900 = 352506^2 + 64930^2 .

It is not an unprimeable number, because it can be changed into a prime (128476384937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12760905 + ... + 12770968.

Almost surely, 2^128476384936 is an apocalyptic number.

It is an amenable number.

128476384936 is an abundant number, since it is smaller than the sum of its proper divisors (133480642304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128476384936 is a wasteful number, since it uses less digits than its factorization.

128476384936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25531933 (or 25531929 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 61.

The spelling of 128476384936 in words is "one hundred twenty-eight billion, four hundred seventy-six million, three hundred eighty-four thousand, nine hundred thirty-six".