966856870487 has 2 divisors, whose sum is σ = 966856870488. Its totient is φ = 966856870486.

The previous prime is 966856870481. The next prime is 966856870591. The reversal of 966856870487 is 784078658669.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 966856870487 - 2⁶ = 966856870423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (966856870481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483428435243 + 483428435244.

It is an arithmetic number, because the mean of its divisors is an integer number (483428435244).

Almost surely, 2^966856870487 is an apocalyptic number.

966856870487 is a deficient number, since it is larger than the sum of its proper divisors (1).

966856870487 is an equidigital number, since it uses as much as digits as its factorization.

966856870487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 975421440, while the sum is 74.

The spelling of 966856870487 in words is "nine hundred sixty-six billion, eight hundred fifty-six million, eight hundred seventy thousand, four hundred eighty-seven".