2100454434025 has 6 divisors (see below), whose sum is σ = 2604563498222. Its totient is φ = 1680363547200.

The previous prime is 2100454434019. The next prime is 2100454434037. The reversal of 2100454434025 is 5204344540012.

It can be written as a sum of positive squares in 3 ways, for example, as 53815184361 + 2046639249664 = 231981^2 + 1430608^2 .

It is not a de Polignac number, because 2100454434025 - 2³ = 2100454434017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42009088656 + ... + 42009088705.

Almost surely, 2^{2100454434025} is an apocalyptic number.

2100454434025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2100454434025 is a deficient number, since it is larger than the sum of its proper divisors (504109064197).

2100454434025 is an equidigital number, since it uses as much as digits as its factorization.

2100454434025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84018177371 (or 84018177366 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 2100454434025 its reverse (5204344540012), we get a palindrome (7304798974037).

The spelling of 2100454434025 in words is "two trillion, one hundred billion, four hundred fifty-four million, four hundred thirty-four thousand, twenty-five".