8420248400206 has 4 divisors (see below), whose sum is σ = 12630372600312. Its totient is φ = 4210124200102.

The previous prime is 8420248400143. The next prime is 8420248400273. The reversal of 8420248400206 is 6020048420248.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2105062100050 + ... + 2105062100053.

It is an arithmetic number, because the mean of its divisors is an integer number (3157593150078).

Almost surely, 2^{8420248400206} is an apocalyptic number.

8420248400206 is a deficient number, since it is larger than the sum of its proper divisors (4210124200106).

8420248400206 is a wasteful number, since it uses less digits than its factorization.

8420248400206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4210124200105.

The product of its (nonzero) digits is 196608, while the sum is 40.

The spelling of 8420248400206 in words is "eight trillion, four hundred twenty billion, two hundred forty-eight million, four hundred thousand, two hundred six".