57204342691 has 2 divisors, whose sum is σ = 57204342692. Its totient is φ = 57204342690.

The previous prime is 57204342641. The next prime is 57204342697. The reversal of 57204342691 is 19624340275.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57204342691 - 2⁹ = 57204342179 is a prime.

It is not a weakly prime, because it can be changed into another prime (57204342697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28602171345 + 28602171346.

It is an arithmetic number, because the mean of its divisors is an integer number (28602171346).

Almost surely, 2^57204342691 is an apocalyptic number.

57204342691 is a deficient number, since it is larger than the sum of its proper divisors (1).

57204342691 is an equidigital number, since it uses as much as digits as its factorization.

57204342691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 57204342691 in words is "fifty-seven billion, two hundred four million, three hundred forty-two thousand, six hundred ninety-one".