8425091812 has 12 divisors (see below), whose sum is σ = 15611199660. Its totient is φ = 3964749056.

The previous prime is 8425091791. The next prime is 8425091819. The reversal of 8425091812 is 2181905248.

It can be written as a sum of positive squares in 2 ways, for example, as 6957895396 + 1467196416 = 83414^2 + 38304^2 .

It is a super-3 number, since 3×8425091812³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (8425091819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61949137 + ... + 61949272.

It is an arithmetic number, because the mean of its divisors is an integer number (1300933305).

Almost surely, 2^8425091812 is an apocalyptic number.

It is an amenable number.

8425091812 is a deficient number, since it is larger than the sum of its proper divisors (7186107848).

8425091812 is a wasteful number, since it uses less digits than its factorization.

8425091812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123898430 (or 123898428 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 8425091812 is about 91788.2988838991. The cubic root of 8425091812 is about 2034.8147671713.

The spelling of 8425091812 in words is "eight billion, four hundred twenty-five million, ninety-one thousand, eight hundred twelve".