57720058567 has 2 divisors, whose sum is σ = 57720058568. Its totient is φ = 57720058566.

The previous prime is 57720058559. The next prime is 57720058579. The reversal of 57720058567 is 76585002775.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57720058567 - 2³ = 57720058559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57720058597) 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, 28860029283 + 28860029284.

It is an arithmetic number, because the mean of its divisors is an integer number (28860029284).

Almost surely, 2^57720058567 is an apocalyptic number.

57720058567 is a deficient number, since it is larger than the sum of its proper divisors (1).

57720058567 is an equidigital number, since it uses as much as digits as its factorization.

57720058567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4116000, while the sum is 52.

The spelling of 57720058567 in words is "fifty-seven billion, seven hundred twenty million, fifty-eight thousand, five hundred sixty-seven".