6421262448 has 20 divisors (see below), whose sum is σ = 16588261448. Its totient is φ = 2140420800.

The previous prime is 6421262443. The next prime is 6421262453. The reversal of 6421262448 is 8442621246.

It is an interprime number because it is at equal distance from previous prime (6421262443) and next prime (6421262453).

It is a super-2 number, since 2×6421262448² = 82465222852189905408, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6421262443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66888103 + ... + 66888198.

Almost surely, 2^6421262448 is an apocalyptic number.

It is an amenable number.

6421262448 is an abundant number, since it is smaller than the sum of its proper divisors (10166999000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6421262448 is a wasteful number, since it uses less digits than its factorization.

6421262448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133776312 (or 133776306 counting only the distinct ones).

The product of its digits is 147456, while the sum is 39.

The square root of 6421262448 is about 80132.7801090166. The cubic root of 6421262448 is about 1858.6893344781.

The spelling of 6421262448 in words is "six billion, four hundred twenty-one million, two hundred sixty-two thousand, four hundred forty-eight".