57240767731993 has 2 divisors, whose sum is σ = 57240767731994. Its totient is φ = 57240767731992.

The previous prime is 57240767731991. The next prime is 57240767732069. The reversal of 57240767731993 is 39913776704275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28794417477849 + 28446350254144 = 5366043^2 + 5333512^2 .

It is a cyclic number.

It is not a de Polignac number, because 57240767731993 - 2¹ = 57240767731991 is a prime.

Together with 57240767731991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (57240767731991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28620383865996 + 28620383865997.

It is an arithmetic number, because the mean of its divisors is an integer number (28620383865997).

Almost surely, 2^{57240767731993} is an apocalyptic number.

It is an amenable number.

57240767731993 is a deficient number, since it is larger than the sum of its proper divisors (1).

57240767731993 is an equidigital number, since it uses as much as digits as its factorization.

57240767731993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420078960, while the sum is 70.

The spelling of 57240767731993 in words is "fifty-seven trillion, two hundred forty billion, seven hundred sixty-seven million, seven hundred thirty-one thousand, nine hundred ninety-three".