57447481963 has 2 divisors, whose sum is σ = 57447481964. Its totient is φ = 57447481962.

The previous prime is 57447481957. The next prime is 57447481967. The reversal of 57447481963 is 36918474475.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57447481963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57447481898 and 57447481907.

It is not a weakly prime, because it can be changed into another prime (57447481967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28723740981 + 28723740982.

It is an arithmetic number, because the mean of its divisors is an integer number (28723740982).

Almost surely, 2^57447481963 is an apocalyptic number.

57447481963 is a deficient number, since it is larger than the sum of its proper divisors (1).

57447481963 is an equidigital number, since it uses as much as digits as its factorization.

57447481963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20321280, while the sum is 58.

The spelling of 57447481963 in words is "fifty-seven billion, four hundred forty-seven million, four hundred eighty-one thousand, nine hundred sixty-three".