128870734453 has 16 divisors (see below), whose sum is σ = 134765116416. Its totient is φ = 123000958080.

The previous prime is 128870734411. The next prime is 128870734459. The reversal of 128870734453 is 354437078821.

It is a cyclic number.

It is not a de Polignac number, because 128870734453 - 2²¹ = 128868637301 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 128870734453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128870734459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23552508 + ... + 23557978.

It is an arithmetic number, because the mean of its divisors is an integer number (8422819776).

Almost surely, 2^128870734453 is an apocalyptic number.

It is an amenable number.

128870734453 is a deficient number, since it is larger than the sum of its proper divisors (5894381963).

128870734453 is a wasteful number, since it uses less digits than its factorization.

128870734453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7524.

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 128870734453 in words is "one hundred twenty-eight billion, eight hundred seventy million, seven hundred thirty-four thousand, four hundred fifty-three".