27430127431 has 16 divisors (see below), whose sum is σ = 32347944000. Its totient is φ = 23247337344.

The previous prime is 27430127401. The next prime is 27430127449. The reversal of 27430127431 is 13472103472.

It is not a de Polignac number, because 27430127431 - 2²⁹ = 26893256519 is a prime.

It is a super-2 number, since 2×27430127431² (a number of 22 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 (27430127401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418750 + ... + 479803.

It is an arithmetic number, because the mean of its divisors is an integer number (2021746500).

Almost surely, 2^27430127431 is an apocalyptic number.

27430127431 is a deficient number, since it is larger than the sum of its proper divisors (4917816569).

27430127431 is an frugal number, since it uses more digits than its factorization.

27430127431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898663 (or 898649 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The spelling of 27430127431 in words is "twenty-seven billion, four hundred thirty million, one hundred twenty-seven thousand, four hundred thirty-one".