128354262440460 has 192 divisors, whose sum is σ = 411237829330944. Its totient is φ = 29302124544000.

The previous prime is 128354262440419. The next prime is 128354262440543. The reversal of 128354262440460 is 64044262453821.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1215411660 + ... + 1215517260.

It is an arithmetic number, because the mean of its divisors is an integer number (2141863694432).

Almost surely, 2^{128354262440460} is an apocalyptic number.

128354262440460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128354262440460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205618914665472).

128354262440460 is an abundant number, since it is smaller than the sum of its proper divisors (282883566890484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128354262440460 is a wasteful number, since it uses less digits than its factorization.

128354262440460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109144 (or 109142 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 51.

The spelling of 128354262440460 in words is "one hundred twenty-eight trillion, three hundred fifty-four billion, two hundred sixty-two million, four hundred forty thousand, four hundred sixty".