2427168821 has 8 divisors (see below), whose sum is σ = 3026080704. Its totient is φ = 1891300320.

The previous prime is 2427168781. The next prime is 2427168827. The reversal of 2427168821 is 1288617242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2427168821 - 2²² = 2422974517 is a prime.

It is a super-2 number, since 2×2427168821² = 11782296971269060082, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2427168827) 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, 15760760 + ... + 15760913.

It is an arithmetic number, because the mean of its divisors is an integer number (378260088).

Almost surely, 2^2427168821 is an apocalyptic number.

It is an amenable number.

2427168821 is a deficient number, since it is larger than the sum of its proper divisors (598911883).

2427168821 is a wasteful number, since it uses less digits than its factorization.

2427168821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31521691.

The product of its digits is 86016, while the sum is 41.

The square root of 2427168821 is about 49266.3051283532. The cubic root of 2427168821 is about 1343.8990951754.

The spelling of 2427168821 in words is "two billion, four hundred twenty-seven million, one hundred sixty-eight thousand, eight hundred twenty-one".