57381538960789 has 2 divisors, whose sum is σ = 57381538960790. Its totient is φ = 57381538960788.

The previous prime is 57381538960787. The next prime is 57381538960799. The reversal of 57381538960789 is 98706983518375.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54365700356100 + 3015838604689 = 7373310^2 + 1736617^2 .

It is a cyclic number.

It is not a de Polignac number, because 57381538960789 - 2¹ = 57381538960787 is a prime.

Together with 57381538960787, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57381538960787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28690769480394 + 28690769480395.

It is an arithmetic number, because the mean of its divisors is an integer number (28690769480395).

Almost surely, 2^{57381538960789} is an apocalyptic number.

It is an amenable number.

57381538960789 is a deficient number, since it is larger than the sum of its proper divisors (1).

57381538960789 is an equidigital number, since it uses as much as digits as its factorization.

57381538960789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2743372800, while the sum is 79.

The spelling of 57381538960789 in words is "fifty-seven trillion, three hundred eighty-one billion, five hundred thirty-eight million, nine hundred sixty thousand, seven hundred eighty-nine".