4428668261 has 8 divisors (see below), whose sum is σ = 4472677440. Its totient is φ = 4384707808.

The previous prime is 4428668243. The next prime is 4428668263. The reversal of 4428668261 is 1628668244.

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 4428668261 - 2¹⁸ = 4428406117 is a prime.

It is a super-2 number, since 2×4428668261² = 39226205131977528242, 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 (4428668263) 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, 186425 + ... + 208833.

It is an arithmetic number, because the mean of its divisors is an integer number (559084680).

Almost surely, 2^4428668261 is an apocalyptic number.

It is an amenable number.

4428668261 is a deficient number, since it is larger than the sum of its proper divisors (44009179).

4428668261 is a wasteful number, since it uses less digits than its factorization.

4428668261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24363.

The product of its digits is 884736, while the sum is 47.

The square root of 4428668261 is about 66548.2401044536. The cubic root of 4428668261 is about 1642.1937058428.

The spelling of 4428668261 in words is "four billion, four hundred twenty-eight million, six hundred sixty-eight thousand, two hundred sixty-one".