128468501479 has 8 divisors (see below), whose sum is σ = 132900324480. Its totient is φ = 124054658400.

The previous prime is 128468501459. The next prime is 128468501489. The reversal of 128468501479 is 974105864821.

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 128468501479 - 2⁷ = 128468501351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128468501419) 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, 4480444 + ... + 4509025.

It is an arithmetic number, because the mean of its divisors is an integer number (16612540560).

Almost surely, 2^128468501479 is an apocalyptic number.

128468501479 is a deficient number, since it is larger than the sum of its proper divisors (4431823001).

128468501479 is an equidigital number, since it uses as much as digits as its factorization.

128468501479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8989961.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 128468501479 in words is "one hundred twenty-eight billion, four hundred sixty-eight million, five hundred one thousand, four hundred seventy-nine".