2128753952897 has 32 divisors (see below), whose sum is σ = 2507696196096. Its totient is φ = 1781526700800.

The previous prime is 2128753952867. The next prime is 2128753952987. The reversal of 2128753952897 is 7982593578212.

It is not a de Polignac number, because 2128753952897 - 2⁶ = 2128753952833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2128753952807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135919247 + ... + 135934907.

It is an arithmetic number, because the mean of its divisors is an integer number (78365506128).

Almost surely, 2^{2128753952897} is an apocalyptic number.

It is an amenable number.

2128753952897 is a deficient number, since it is larger than the sum of its proper divisors (378942243199).

2128753952897 is a wasteful number, since it uses less digits than its factorization.

2128753952897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18201.

The product of its digits is 152409600, while the sum is 68.

The spelling of 2128753952897 in words is "two trillion, one hundred twenty-eight billion, seven hundred fifty-three million, nine hundred fifty-two thousand, eight hundred ninety-seven".