840008480827 has 2 divisors, whose sum is σ = 840008480828. Its totient is φ = 840008480826.

The previous prime is 840008480767. The next prime is 840008480851. The reversal of 840008480827 is 728084800048.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 840008480827 - 2²⁷ = 839874263099 is a prime.

It is a super-2 number, since 2×840008480827² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (840008480867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420004240413 + 420004240414.

It is an arithmetic number, because the mean of its divisors is an integer number (420004240414).

Almost surely, 2^840008480827 is an apocalyptic number.

840008480827 is a deficient number, since it is larger than the sum of its proper divisors (1).

840008480827 is an equidigital number, since it uses as much as digits as its factorization.

840008480827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 917504, while the sum is 49.

The spelling of 840008480827 in words is "eight hundred forty billion, eight million, four hundred eighty thousand, eight hundred twenty-seven".