57756033947 has 2 divisors, whose sum is σ = 57756033948. Its totient is φ = 57756033946.

The previous prime is 57756033901. The next prime is 57756033949. The reversal of 57756033947 is 74933065775.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57756033947 - 2²⁰ = 57754985371 is a prime.

Together with 57756033949, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 57756033892 and 57756033901.

It is not a weakly prime, because it can be changed into another prime (57756033949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28878016973 + 28878016974.

It is an arithmetic number, because the mean of its divisors is an integer number (28878016974).

Almost surely, 2^57756033947 is an apocalyptic number.

57756033947 is a deficient number, since it is larger than the sum of its proper divisors (1).

57756033947 is an equidigital number, since it uses as much as digits as its factorization.

57756033947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16669800, while the sum is 56.

The spelling of 57756033947 in words is "fifty-seven billion, seven hundred fifty-six million, thirty-three thousand, nine hundred forty-seven".