57148395461 has 2 divisors, whose sum is σ = 57148395462. Its totient is φ = 57148395460.

The previous prime is 57148395391. The next prime is 57148395463. The reversal of 57148395461 is 16459384175.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56213564836 + 934830625 = 237094^2 + 30575^2 .

It is a cyclic number.

It is not a de Polignac number, because 57148395461 - 2²² = 57144201157 is a prime.

Together with 57148395463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57148395463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28574197730 + 28574197731.

It is an arithmetic number, because the mean of its divisors is an integer number (28574197731).

Almost surely, 2^57148395461 is an apocalyptic number.

It is an amenable number.

57148395461 is a deficient number, since it is larger than the sum of its proper divisors (1).

57148395461 is an equidigital number, since it uses as much as digits as its factorization.

57148395461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3628800, while the sum is 53.

The spelling of 57148395461 in words is "fifty-seven billion, one hundred forty-eight million, three hundred ninety-five thousand, four hundred sixty-one".