254419521663 has 8 divisors (see below), whose sum is σ = 339558281776. Its totient is φ = 169446888000.

The previous prime is 254419521661. The next prime is 254419521677. The reversal of 254419521663 is 366125914452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 254419521663 - 2¹ = 254419521661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254419521661) 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 7 ways as a sum of consecutive naturals, for example, 41528038 + ... + 41534163.

It is an arithmetic number, because the mean of its divisors is an integer number (42444785222).

Almost surely, 2^254419521663 is an apocalyptic number.

254419521663 is a deficient number, since it is larger than the sum of its proper divisors (85138760113).

254419521663 is a wasteful number, since it uses less digits than its factorization.

254419521663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83063225.

The product of its digits is 1555200, while the sum is 48.

The spelling of 254419521663 in words is "two hundred fifty-four billion, four hundred nineteen million, five hundred twenty-one thousand, six hundred sixty-three".