254159854491 has 16 divisors (see below), whose sum is σ = 341618365440. Its totient is φ = 168071772960.

The previous prime is 254159854489. The next prime is 254159854523. The reversal of 254159854491 is 194458951452.

It is not a de Polignac number, because 254159854491 - 2¹ = 254159854489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (254159854391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 749206 + ... + 1034228.

It is an arithmetic number, because the mean of its divisors is an integer number (21351147840).

Almost surely, 2^254159854491 is an apocalyptic number.

254159854491 is a deficient number, since it is larger than the sum of its proper divisors (87458510949).

254159854491 is a wasteful number, since it uses less digits than its factorization.

254159854491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287426.

The product of its digits is 10368000, while the sum is 57.

The spelling of 254159854491 in words is "two hundred fifty-four billion, one hundred fifty-nine million, eight hundred fifty-four thousand, four hundred ninety-one".