53688471787 has 2 divisors, whose sum is σ = 53688471788. Its totient is φ = 53688471786.

The previous prime is 53688471721. The next prime is 53688471803. The reversal of 53688471787 is 78717488635.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53688471787 - 2⁷ = 53688471659 is a prime.

It is not a weakly prime, because it can be changed into another prime (53688471587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26844235893 + 26844235894.

It is an arithmetic number, because the mean of its divisors is an integer number (26844235894).

Almost surely, 2^53688471787 is an apocalyptic number.

53688471787 is a deficient number, since it is larger than the sum of its proper divisors (1).

53688471787 is an equidigital number, since it uses as much as digits as its factorization.

53688471787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63221760, while the sum is 64.

The spelling of 53688471787 in words is "fifty-three billion, six hundred eighty-eight million, four hundred seventy-one thousand, seven hundred eighty-seven".