27954559019519 has 8 divisors (see below), whose sum is σ = 30603641872512. Its totient is φ = 25323436050840.

The previous prime is 27954559019467. The next prime is 27954559019521. The reversal of 27954559019519 is 91591095545972.

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

It is a cyclic number.

It is not a de Polignac number, because 27954559019519 - 2⁸ = 27954559019263 is a prime.

It is a super-2 number, since 2×27954559019519² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27954559019539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4489967819 + ... + 4489974044.

It is an arithmetic number, because the mean of its divisors is an integer number (3825455234064).

Almost surely, 2^{27954559019519} is an apocalyptic number.

27954559019519 is a deficient number, since it is larger than the sum of its proper divisors (2649082852993).

27954559019519 is a wasteful number, since it uses less digits than its factorization.

27954559019519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8979942157.

The product of its (nonzero) digits is 229635000, while the sum is 71.

The spelling of 27954559019519 in words is "twenty-seven trillion, nine hundred fifty-four billion, five hundred fifty-nine million, nineteen thousand, five hundred nineteen".