31428757127 has 2 divisors, whose sum is σ = 31428757128. Its totient is φ = 31428757126.

The previous prime is 31428757081. The next prime is 31428757189. The reversal of 31428757127 is 72175782413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31428757127 - 2²² = 31424562823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31428757027) 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 as a sum of consecutive naturals, namely, 15714378563 + 15714378564.

It is an arithmetic number, because the mean of its divisors is an integer number (15714378564).

Almost surely, 2^31428757127 is an apocalyptic number.

31428757127 is a deficient number, since it is larger than the sum of its proper divisors (1).

31428757127 is an equidigital number, since it uses as much as digits as its factorization.

31428757127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 658560, while the sum is 47.

The spelling of 31428757127 in words is "thirty-one billion, four hundred twenty-eight million, seven hundred fifty-seven thousand, one hundred twenty-seven".