128894252354 has 24 divisors (see below), whose sum is σ = 230985900540. Its totient is φ = 53747408736.

The previous prime is 128894252353. The next prime is 128894252359. The reversal of 128894252354 is 453252498821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 116026753129 + 12867499225 = 340627^2 + 113435^2 .

It is a super-2 number, since 2×128894252354² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 128894252296 and 128894252305.

It is not an unprimeable number, because it can be changed into a prime (128894252353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17769989 + ... + 17777240.

Almost surely, 2^128894252354 is an apocalyptic number.

128894252354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

128894252354 is a deficient number, since it is larger than the sum of its proper divisors (102091648186).

128894252354 is a wasteful number, since it uses less digits than its factorization.

128894252354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35547282 (or 35547275 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 53.

The spelling of 128894252354 in words is "one hundred twenty-eight billion, eight hundred ninety-four million, two hundred fifty-two thousand, three hundred fifty-four".