2654876485421 has 2 divisors, whose sum is σ = 2654876485422. Its totient is φ = 2654876485420.

The previous prime is 2654876485381. The next prime is 2654876485423. The reversal of 2654876485421 is 1245846784562.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1397327311396 + 1257549174025 = 1182086^2 + 1121405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2654876485421 is a prime.

It is a super-3 number, since 3×2654876485421³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

Together with 2654876485423, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2654876485423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1327438242710 + 1327438242711.

It is an arithmetic number, because the mean of its divisors is an integer number (1327438242711).

Almost surely, 2^{2654876485421} is an apocalyptic number.

It is an amenable number.

2654876485421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2654876485421 is an equidigital number, since it uses as much as digits as its factorization.

2654876485421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103219200, while the sum is 62.

The spelling of 2654876485421 in words is "two trillion, six hundred fifty-four billion, eight hundred seventy-six million, four hundred eighty-five thousand, four hundred twenty-one".