4266516921 has 8 divisors (see below), whose sum is σ = 5690448864. Its totient is φ = 2843464800.

The previous prime is 4266516871. The next prime is 4266516941. The reversal of 4266516921 is 1296156624.

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

It is not a de Polignac number, because 4266516921 - 2⁶ = 4266516857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4266516941) 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, 208555 + ... + 228096.

It is an arithmetic number, because the mean of its divisors is an integer number (711306108).

Almost surely, 2^4266516921 is an apocalyptic number.

It is an amenable number.

4266516921 is a deficient number, since it is larger than the sum of its proper divisors (1423931943).

4266516921 is a wasteful number, since it uses less digits than its factorization.

4266516921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439911.

The product of its digits is 155520, while the sum is 42.

The square root of 4266516921 is about 65318.5802126776. The cubic root of 4266516921 is about 1621.9015572769.

The spelling of 4266516921 in words is "four billion, two hundred sixty-six million, five hundred sixteen thousand, nine hundred twenty-one".