6266463921 has 9 divisors (see below), whose sum is σ = 9051902041. Its totient is φ = 4177484292.

The previous prime is 6266463901. The next prime is 6266463947. The reversal of 6266463921 is 1293646626.

The square root of 6266463921 is 79161.

It is a perfect power (a square), and thus also a powerful number.

6266463921 is a `hidden beast` number, since 6 + 2 + 6 + 6 + 4 + 639 + 2 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 6266463921 - 2⁷ = 6266463793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6266463901) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 224290 + ... + 250676.

Almost surely, 2^6266463921 is an apocalyptic number.

6266463921 is the 79161-st square number.

6266463921 is the 39581-st centered octagonal number.

It is an amenable number.

6266463921 is a deficient number, since it is larger than the sum of its proper divisors (2785438120).

6266463921 is an frugal number, since it uses more digits than its factorization.

6266463921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52780 (or 26390 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The cubic root of 6266463921 is about 1843.6317605975.

The spelling of 6266463921 in words is "six billion, two hundred sixty-six million, four hundred sixty-three thousand, nine hundred twenty-one".