128314817951 has 8 divisors (see below), whose sum is σ = 128470147440. Its totient is φ = 128159583552.

The previous prime is 128314817927. The next prime is 128314817959. The reversal of 128314817951 is 159718413821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128314817951 - 2¹⁸ = 128314555807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128314817951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128314817959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2888315 + ... + 2932403.

It is an arithmetic number, because the mean of its divisors is an integer number (16058768430).

Almost surely, 2^128314817951 is an apocalyptic number.

128314817951 is a deficient number, since it is larger than the sum of its proper divisors (155329489).

128314817951 is a wasteful number, since it uses less digits than its factorization.

128314817951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47545.

The product of its digits is 483840, while the sum is 50.

The spelling of 128314817951 in words is "one hundred twenty-eight billion, three hundred fourteen million, eight hundred seventeen thousand, nine hundred fifty-one".