27752508431 has 2 divisors, whose sum is σ = 27752508432. Its totient is φ = 27752508430.

The previous prime is 27752508389. The next prime is 27752508437. The reversal of 27752508431 is 13480525772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27752508431 - 2⁶ = 27752508367 is a prime.

It is a super-4 number, since 4×27752508431⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27752508437) 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 as a sum of consecutive naturals, namely, 13876254215 + 13876254216.

It is an arithmetic number, because the mean of its divisors is an integer number (13876254216).

Almost surely, 2^27752508431 is an apocalyptic number.

27752508431 is a deficient number, since it is larger than the sum of its proper divisors (1).

27752508431 is an equidigital number, since it uses as much as digits as its factorization.

27752508431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 27752508431 in words is "twenty-seven billion, seven hundred fifty-two million, five hundred eight thousand, four hundred thirty-one".