823255083787 has 2 divisors, whose sum is σ = 823255083788. Its totient is φ = 823255083786.

The previous prime is 823255083779. The next prime is 823255083869. The reversal of 823255083787 is 787380552328.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 823255083787 - 2³ = 823255083779 is a prime.

It is a super-2 number, since 2×823255083787² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (823255083757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411627541893 + 411627541894.

It is an arithmetic number, because the mean of its divisors is an integer number (411627541894).

Almost surely, 2^823255083787 is an apocalyptic number.

823255083787 is a deficient number, since it is larger than the sum of its proper divisors (1).

823255083787 is an equidigital number, since it uses as much as digits as its factorization.

823255083787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22579200, while the sum is 58.

The spelling of 823255083787 in words is "eight hundred twenty-three billion, two hundred fifty-five million, eighty-three thousand, seven hundred eighty-seven".