128888684383156 has 48 divisors (see below), whose sum is σ = 228581848535040. Its totient is φ = 63580820640480.

The previous prime is 128888684383139. The next prime is 128888684383177. The reversal of 128888684383156 is 651383486888821.

It is a super-2 number, since 2×128888684383156² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (79) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (79).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6495413371 + ... + 6495433213.

It is an arithmetic number, because the mean of its divisors is an integer number (4762121844480).

Almost surely, 2^{128888684383156} is an apocalyptic number.

It is an amenable number.

128888684383156 is a deficient number, since it is larger than the sum of its proper divisors (99693164151884).

128888684383156 is a wasteful number, since it uses less digits than its factorization.

128888684383156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34324 (or 34322 counting only the distinct ones).

The product of its digits is 3397386240, while the sum is 79.

The spelling of 128888684383156 in words is "one hundred twenty-eight trillion, eight hundred eighty-eight billion, six hundred eighty-four million, three hundred eighty-three thousand, one hundred fifty-six".