857647746707 has 2 divisors, whose sum is σ = 857647746708. Its totient is φ = 857647746706.

The previous prime is 857647746677. The next prime is 857647746763. The reversal of 857647746707 is 707647746758.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 857647746707 - 2¹⁶ = 857647681171 is a prime.

It is not a weakly prime, because it can be changed into another prime (857647746407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428823873353 + 428823873354.

It is an arithmetic number, because the mean of its divisors is an integer number (428823873354).

Almost surely, 2^857647746707 is an apocalyptic number.

857647746707 is a deficient number, since it is larger than the sum of its proper divisors (1).

857647746707 is an equidigital number, since it uses as much as digits as its factorization.

857647746707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387233280, while the sum is 68.

The spelling of 857647746707 in words is "eight hundred fifty-seven billion, six hundred forty-seven million, seven hundred forty-six thousand, seven hundred seven".