8425426851 has 12 divisors (see below), whose sum is σ = 12170929680. Its totient is φ = 5616550320.

The previous prime is 8425426829. The next prime is 8425426859. The reversal of 8425426851 is 1586245248.

8425426851 is a `hidden beast` number, since 8 + 42 + 542 + 68 + 5 + 1 = 666.

It is not a de Polignac number, because 8425426851 - 2¹⁴ = 8425410467 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8425426797 and 8425426806.

It is not an unprimeable number, because it can be changed into a prime (8425426859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156505 + ... + 203333.

It is an arithmetic number, because the mean of its divisors is an integer number (1014244140).

Almost surely, 2^8425426851 is an apocalyptic number.

8425426851 is a deficient number, since it is larger than the sum of its proper divisors (3745502829).

8425426851 is a wasteful number, since it uses less digits than its factorization.

8425426851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66826 (or 66823 counting only the distinct ones).

The product of its digits is 614400, while the sum is 45.

The square root of 8425426851 is about 91790.1239295383. The cubic root of 8425426851 is about 2034.8417395091.

The spelling of 8425426851 in words is "eight billion, four hundred twenty-five million, four hundred twenty-six thousand, eight hundred fifty-one".