8351945860 has 12 divisors (see below), whose sum is σ = 17539086348. Its totient is φ = 3340778336.

The previous prime is 8351945839. The next prime is 8351945867. The reversal of 8351945860 is 685491538.

It can be written as a sum of positive squares in 2 ways, for example, as 4407100996 + 3944844864 = 66386^2 + 62808^2 .

It is a super-2 number, since 2×8351945860² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8351945867) 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, 208798627 + ... + 208798666.

It is an arithmetic number, because the mean of its divisors is an integer number (1461590529).

Almost surely, 2^8351945860 is an apocalyptic number.

It is an amenable number.

8351945860 is an abundant number, since it is smaller than the sum of its proper divisors (9187140488).

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

8351945860 is a wasteful number, since it uses less digits than its factorization.

8351945860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417597302 (or 417597300 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

The square root of 8351945860 is about 91388.9810644588. The cubic root of 8351945860 is about 2028.9089447899.

The spelling of 8351945860 in words is "eight billion, three hundred fifty-one million, nine hundred forty-five thousand, eight hundred sixty".