5271561723949 has 8 divisors (see below), whose sum is σ = 5453365311360. Its totient is φ = 5089759843056.

The previous prime is 5271561723899. The next prime is 5271561723979. The reversal of 5271561723949 is 9493271651725.

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 5271561723949 - 2⁷ = 5271561723821 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 (5271561723979) 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, 11718624 + ... + 12160150.

It is an arithmetic number, because the mean of its divisors is an integer number (681670663920).

Almost surely, 2^{5271561723949} is an apocalyptic number.

It is an amenable number.

5271561723949 is a deficient number, since it is larger than the sum of its proper divisors (181803587411).

5271561723949 is a wasteful number, since it uses less digits than its factorization.

5271561723949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853259.

The product of its digits is 28576800, while the sum is 61.

The spelling of 5271561723949 in words is "five trillion, two hundred seventy-one billion, five hundred sixty-one million, seven hundred twenty-three thousand, nine hundred forty-nine".