8146581212 has 24 divisors (see below), whose sum is σ = 17774359680. Its totient is φ = 3173992560.

The previous prime is 8146581167. The next prime is 8146581217. The reversal of 8146581212 is 2121856418.

It is a super-2 number, since 2×8146581212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8146581217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13224662 + ... + 13225277.

It is an arithmetic number, because the mean of its divisors is an integer number (740598320).

Almost surely, 2^8146581212 is an apocalyptic number.

It is an amenable number.

8146581212 is an abundant number, since it is smaller than the sum of its proper divisors (9627778468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8146581212 is a wasteful number, since it uses less digits than its factorization.

8146581212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26449961 (or 26449959 counting only the distinct ones).

The product of its digits is 30720, while the sum is 38.

The square root of 8146581212 is about 90258.4135247236. The cubic root of 8146581212 is about 2012.1412469167.

The spelling of 8146581212 in words is "eight billion, one hundred forty-six million, five hundred eighty-one thousand, two hundred twelve".