57491484329 has 2 divisors, whose sum is σ = 57491484330. Its totient is φ = 57491484328.

The previous prime is 57491484301. The next prime is 57491484373. The reversal of 57491484329 is 92348419475.

It is a happy number.

57491484329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57475267600 + 16216729 = 239740^2 + 4027^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57491484329 is a prime.

It is not a weakly prime, because it can be changed into another prime (57491484389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28745742164 + 28745742165.

It is an arithmetic number, because the mean of its divisors is an integer number (28745742165).

Almost surely, 2^57491484329 is an apocalyptic number.

It is an amenable number.

57491484329 is a deficient number, since it is larger than the sum of its proper divisors (1).

57491484329 is an equidigital number, since it uses as much as digits as its factorization.

57491484329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 56.

The spelling of 57491484329 in words is "fifty-seven billion, four hundred ninety-one million, four hundred eighty-four thousand, three hundred twenty-nine".