8180468040 has 32 divisors (see below), whose sum is σ = 24541404480. Its totient is φ = 2181458112.

The previous prime is 8180468039. The next prime is 8180468053. The reversal of 8180468040 is 408640818.

It is a super-2 number, since 2×8180468040² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8180468040.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34085164 + ... + 34085403.

It is an arithmetic number, because the mean of its divisors is an integer number (766918890).

Almost surely, 2^8180468040 is an apocalyptic number.

It is an amenable number.

8180468040 is an abundant number, since it is smaller than the sum of its proper divisors (16360936440).

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

8180468040 is a wasteful number, since it uses less digits than its factorization.

8180468040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68170581 (or 68170577 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 8180468040 is about 90445.9398757070. The cubic root of 8180468040 is about 2014.9273138035.

The spelling of 8180468040 in words is "eight billion, one hundred eighty million, four hundred sixty-eight thousand, forty".