128635087046 has 24 divisors (see below), whose sum is σ = 195120603216. Its totient is φ = 63602822400.

The previous prime is 128635086959. The next prime is 128635087057. The reversal of 128635087046 is 640780536821.

It is a super-2 number, since 2×128635087046² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128635086985 and 128635087003.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 34754996 + ... + 34758696.

It is an arithmetic number, because the mean of its divisors is an integer number (8130025134).

Almost surely, 2^128635087046 is an apocalyptic number.

128635087046 is a deficient number, since it is larger than the sum of its proper divisors (66485516170).

128635087046 is an equidigital number, since it uses as much as digits as its factorization.

128635087046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5744 (or 5647 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 128635087046 in words is "one hundred twenty-eight billion, six hundred thirty-five million, eighty-seven thousand, forty-six".