54188771731 has 2 divisors, whose sum is σ = 54188771732. Its totient is φ = 54188771730.

The previous prime is 54188771713. The next prime is 54188771737. The reversal of 54188771731 is 13717788145.

Together with previous prime (54188771713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54188771731 - 2¹¹ = 54188769683 is a prime.

It is a super-2 number, since 2×54188771731² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54188771737) 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, 27094385865 + 27094385866.

It is an arithmetic number, because the mean of its divisors is an integer number (27094385866).

Almost surely, 2^54188771731 is an apocalyptic number.

54188771731 is a deficient number, since it is larger than the sum of its proper divisors (1).

54188771731 is an equidigital number, since it uses as much as digits as its factorization.

54188771731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1317120, while the sum is 52.

The spelling of 54188771731 in words is "fifty-four billion, one hundred eighty-eight million, seven hundred seventy-one thousand, seven hundred thirty-one".