128453854545 has 24 divisors (see below), whose sum is σ = 227390656896. Its totient is φ = 67051088928.

The previous prime is 128453854541. The next prime is 128453854583. The reversal of 128453854545 is 545458354821.

128453854545 is a `hidden beast` number, since 1 + 2 + 8 + 4 + 53 + 8 + 545 + 45 = 666.

It is not a de Polignac number, because 128453854545 - 2² = 128453854541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128453854491 and 128453854500.

It is not an unprimeable number, because it can be changed into a prime (128453854541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30365227 + ... + 30369456.

It is an arithmetic number, because the mean of its divisors is an integer number (9474610704).

Almost surely, 2^128453854545 is an apocalyptic number.

128453854545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

128453854545 is a deficient number, since it is larger than the sum of its proper divisors (98936802351).

128453854545 is a wasteful number, since it uses less digits than its factorization.

128453854545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60734741 (or 60734738 counting only the distinct ones).

The product of its digits is 15360000, while the sum is 54.

The spelling of 128453854545 in words is "one hundred twenty-eight billion, four hundred fifty-three million, eight hundred fifty-four thousand, five hundred forty-five".