8715961812 has 96 divisors (see below), whose sum is σ = 22142937600. Its totient is φ = 2657843200.

The previous prime is 8715961811. The next prime is 8715961831. The reversal of 8715961812 is 2181695178.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8715961811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1425562 + ... + 1431662.

It is an arithmetic number, because the mean of its divisors is an integer number (230655600).

Almost surely, 2^8715961812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8715961812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11071468800).

8715961812 is an abundant number, since it is smaller than the sum of its proper divisors (13426975788).

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

8715961812 is a wasteful number, since it uses less digits than its factorization.

8715961812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321 (or 6319 counting only the distinct ones).

The product of its digits is 241920, while the sum is 48.

The square root of 8715961812 is about 93359.3156144581. The cubic root of 8715961812 is about 2057.9671569622.

The spelling of 8715961812 in words is "eight billion, seven hundred fifteen million, nine hundred sixty-one thousand, eight hundred twelve".