128475357454 has 8 divisors (see below), whose sum is σ = 193445786160. Its totient is φ = 63993428736.

The previous prime is 128475357397. The next prime is 128475357457. The reversal of 128475357454 is 454753574821.

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

It is a junction number, because it is equal to n+sod(n) for n = 128475357395 and 128475357404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128475357457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122124339 + ... + 122125390.

It is an arithmetic number, because the mean of its divisors is an integer number (24180723270).

Almost surely, 2^128475357454 is an apocalyptic number.

128475357454 is a deficient number, since it is larger than the sum of its proper divisors (64970428706).

128475357454 is a wasteful number, since it uses less digits than its factorization.

128475357454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244249994.

The product of its digits is 18816000, while the sum is 55.

The spelling of 128475357454 in words is "one hundred twenty-eight billion, four hundred seventy-five million, three hundred fifty-seven thousand, four hundred fifty-four".