254309412681 has 27 divisors (see below), whose sum is σ = 371037126733. Its totient is φ = 167848216440.

The previous prime is 254309412667. The next prime is 254309412713. The reversal of 254309412681 is 186214903452.

The square root of 254309412681 is 504291.

It is a perfect power (a square), and thus also a powerful number.

254309412681 is a `hidden beast` number, since 2 + 5 + 430 + 94 + 126 + 8 + 1 = 666.

It is not a de Polignac number, because 254309412681 - 2¹¹ = 254309410633 is a prime.

It is a super-2 number, since 2×254309412681² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254309412611) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 161876626 + ... + 161878196.

Almost surely, 2^254309412681 is an apocalyptic number.

254309412681 is the 504291-st square number.

254309412681 is the 252146-th centered octagonal number.

It is an amenable number.

254309412681 is a deficient number, since it is larger than the sum of its proper divisors (116727714052).

254309412681 is an frugal number, since it uses more digits than its factorization.

254309412681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3362 (or 1681 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 254309412681 in words is "two hundred fifty-four billion, three hundred nine million, four hundred twelve thousand, six hundred eighty-one".