2181150468 has 72 divisors (see below), whose sum is σ = 6407943360. Its totient is φ = 612619200.

The previous prime is 2181150463. The next prime is 2181150469. The reversal of 2181150468 is 8640511812.

2181150468 is a `hidden beast` number, since 2 + 181 + 15 + 0 + 468 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2181150463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58483 + ... + 88218.

Almost surely, 2^2181150468 is an apocalyptic number.

2181150468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2181150468 is an abundant number, since it is smaller than the sum of its proper divisors (4226792892).

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

2181150468 is a wasteful number, since it uses less digits than its factorization.

2181150468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146777 (or 146772 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 2181150468 is about 46702.7886533556. The cubic root of 2181150468 is about 1296.8663117881.

The spelling of 2181150468 in words is "two billion, one hundred eighty-one million, one hundred fifty thousand, four hundred sixty-eight".