54197819481 has 8 divisors (see below), whose sum is σ = 77822510080. Its totient is φ = 33352504272.

The previous prime is 54197819453. The next prime is 54197819497. The reversal of 54197819481 is 18491879145.

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

It is not a de Polignac number, because 54197819481 - 2¹⁷ = 54197688409 is a prime.

It is a super-2 number, since 2×54197819481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54197819581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694843801 + ... + 694843878.

It is an arithmetic number, because the mean of its divisors is an integer number (9727813760).

Almost surely, 2^54197819481 is an apocalyptic number.

It is an amenable number.

54197819481 is a deficient number, since it is larger than the sum of its proper divisors (23624690599).

54197819481 is a wasteful number, since it uses less digits than its factorization.

54197819481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389687695.

The product of its digits is 2903040, while the sum is 57.

The spelling of 54197819481 in words is "fifty-four billion, one hundred ninety-seven million, eight hundred nineteen thousand, four hundred eighty-one".