254544100641 has 24 divisors (see below), whose sum is σ = 381881957184. Its totient is φ = 169433681040.

The previous prime is 254544100637. The next prime is 254544100667. The reversal of 254544100641 is 146001445452.

254544100641 is a `hidden beast` number, since 2 + 5 + 4 + 5 + 4 + 4 + 1 + 0 + 0 + 641 = 666.

It is not a de Polignac number, because 254544100641 - 2² = 254544100637 is a prime.

It is a super-2 number, since 2×254544100641² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 254544100596 and 254544100605.

It is not an unprimeable number, because it can be changed into a prime (254544100691) 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, 652290 + ... + 966731.

It is an arithmetic number, because the mean of its divisors is an integer number (15911748216).

Almost surely, 2^254544100641 is an apocalyptic number.

It is an amenable number.

254544100641 is a deficient number, since it is larger than the sum of its proper divisors (127337856543).

254544100641 is an equidigital number, since it uses as much as digits as its factorization.

254544100641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619683 (or 1619671 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The spelling of 254544100641 in words is "two hundred fifty-four billion, five hundred forty-four million, one hundred thousand, six hundred forty-one".