2664801421 has 8 divisors (see below), whose sum is σ = 2702540160. Its totient is φ = 2627236128.

The previous prime is 2664801407. The next prime is 2664801439. The reversal of 2664801421 is 1241084662.

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

It is a cyclic number.

It is not a de Polignac number, because 2664801421 - 2¹⁵ = 2664768653 is a prime.

It is a super-2 number, since 2×2664801421² = 14202333226727238482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664801401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12261 + ... + 74026.

It is an arithmetic number, because the mean of its divisors is an integer number (337817520).

Almost surely, 2^2664801421 is an apocalyptic number.

It is an amenable number.

2664801421 is a deficient number, since it is larger than the sum of its proper divisors (37738739).

2664801421 is an equidigital number, since it uses as much as digits as its factorization.

2664801421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86723.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 2664801421 is about 51621.7146266956. The cubic root of 2664801421 is about 1386.3991510094.

The spelling of 2664801421 in words is "two billion, six hundred sixty-four million, eight hundred one thousand, four hundred twenty-one".