10128709456 has 40 divisors (see below), whose sum is σ = 20783294784. Its totient is φ = 4771852800.

The previous prime is 10128709417. The next prime is 10128709457. The reversal of 10128709456 is 65490782101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10128709457) 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, 180745 + ... + 230056.

Almost surely, 2^10128709456 is an apocalyptic number.

10128709456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10128709456 is an abundant number, since it is smaller than the sum of its proper divisors (10654585328).

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

10128709456 is a wasteful number, since it uses less digits than its factorization.

10128709456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410899 (or 410893 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 10128709456 in words is "ten billion, one hundred twenty-eight million, seven hundred nine thousand, four hundred fifty-six".