5193891505127 has 4 divisors (see below), whose sum is σ = 5593421620920. Its totient is φ = 4794361389336.

The previous prime is 5193891505123. The next prime is 5193891505139. The reversal of 5193891505127 is 7215051983915.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5193891505127 - 2² = 5193891505123 is a prime.

It is a super-3 number, since 3×5193891505127³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5193891505123) 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 3 ways as a sum of consecutive naturals, for example, 199765057877 + ... + 199765057902.

It is an arithmetic number, because the mean of its divisors is an integer number (1398355405230).

Almost surely, 2^{5193891505127} is an apocalyptic number.

5193891505127 is a deficient number, since it is larger than the sum of its proper divisors (399530115793).

5193891505127 is a wasteful number, since it uses less digits than its factorization.

5193891505127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399530115792.

The product of its (nonzero) digits is 3402000, while the sum is 56.

The spelling of 5193891505127 in words is "five trillion, one hundred ninety-three billion, eight hundred ninety-one million, five hundred five thousand, one hundred twenty-seven".