128354262440458 has 8 divisors (see below), whose sum is σ = 193539411429120. Its totient is φ = 63841125297420.

The previous prime is 128354262440419. The next prime is 128354262440543. The reversal of 128354262440458 is 854044262453821.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168002960928 + ... + 168002961691.

It is an arithmetic number, because the mean of its divisors is an integer number (24192426428640).

Almost surely, 2^{128354262440458} is an apocalyptic number.

128354262440458 is a deficient number, since it is larger than the sum of its proper divisors (65185148988662).

128354262440458 is a wasteful number, since it uses less digits than its factorization.

128354262440458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336005922812.

The product of its (nonzero) digits is 58982400, while the sum is 58.

The spelling of 128354262440458 in words is "one hundred twenty-eight trillion, three hundred fifty-four billion, two hundred sixty-two million, four hundred forty thousand, four hundred fifty-eight".