57901016678509 has 2 divisors, whose sum is σ = 57901016678510. Its totient is φ = 57901016678508.

The previous prime is 57901016678317. The next prime is 57901016678621. The reversal of 57901016678509 is 90587661010975.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35477211875625 + 22423804802884 = 5956275^2 + 4735378^2 .

It is a cyclic number.

It is not a de Polignac number, because 57901016678509 - 2¹⁵ = 57901016645741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57901016678009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28950508339254 + 28950508339255.

It is an arithmetic number, because the mean of its divisors is an integer number (28950508339255).

Almost surely, 2^{57901016678509} is an apocalyptic number.

It is an amenable number.

57901016678509 is a deficient number, since it is larger than the sum of its proper divisors (1).

57901016678509 is an equidigital number, since it uses as much as digits as its factorization.

57901016678509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28576800, while the sum is 64.

The spelling of 57901016678509 in words is "fifty-seven trillion, nine hundred one billion, sixteen million, six hundred seventy-eight thousand, five hundred nine".