57406413662749 has 2 divisors, whose sum is σ = 57406413662750. Its totient is φ = 57406413662748.

The previous prime is 57406413662747. The next prime is 57406413662803. The reversal of 57406413662749 is 94726631460475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31468936039524 + 25937477623225 = 5609718^2 + 5092885^2 .

It is a cyclic number.

It is not a de Polignac number, because 57406413662749 - 2¹ = 57406413662747 is a prime.

Together with 57406413662747, 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 (57406413662747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28703206831374 + 28703206831375.

It is an arithmetic number, because the mean of its divisors is an integer number (28703206831375).

Almost surely, 2^{57406413662749} is an apocalyptic number.

It is an amenable number.

57406413662749 is a deficient number, since it is larger than the sum of its proper divisors (1).

57406413662749 is an equidigital number, since it uses as much as digits as its factorization.

57406413662749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 182891520, while the sum is 64.

The spelling of 57406413662749 in words is "fifty-seven trillion, four hundred six billion, four hundred thirteen million, six hundred sixty-two thousand, seven hundred forty-nine".