8400498811 has 2 divisors, whose sum is σ = 8400498812. Its totient is φ = 8400498810.

The previous prime is 8400498809. The next prime is 8400498839. The reversal of 8400498811 is 1188940048.

8400498811 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8400498811 - 2¹ = 8400498809 is a prime.

It is a super-2 number, since 2×8400498811² (a number of 21 digits) contains 22 as substring.

Together with 8400498809, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8400493811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4200249405 + 4200249406.

It is an arithmetic number, because the mean of its divisors is an integer number (4200249406).

Almost surely, 2^8400498811 is an apocalyptic number.

8400498811 is a deficient number, since it is larger than the sum of its proper divisors (1).

8400498811 is an equidigital number, since it uses as much as digits as its factorization.

8400498811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 43.

The square root of 8400498811 is about 91654.2350958209. The cubic root of 8400498811 is about 2032.8329501097.

The spelling of 8400498811 in words is "eight billion, four hundred million, four hundred ninety-eight thousand, eight hundred eleven".