6446251248 has 20 divisors (see below), whose sum is σ = 16652815848. Its totient is φ = 2148750400.

The previous prime is 6446251247. The next prime is 6446251249. The reversal of 6446251248 is 8421526446.

It is an interprime number because it is at equal distance from previous prime (6446251247) and next prime (6446251249).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6446251247) 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, 67148403 + ... + 67148498.

Almost surely, 2^6446251248 is an apocalyptic number.

It is an amenable number.

6446251248 is an abundant number, since it is smaller than the sum of its proper divisors (10206564600).

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

6446251248 is a wasteful number, since it uses less digits than its factorization.

6446251248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134296912 (or 134296906 counting only the distinct ones).

The product of its digits is 368640, while the sum is 42.

The square root of 6446251248 is about 80288.5499184037. The cubic root of 6446251248 is about 1861.0972875608.

The spelling of 6446251248 in words is "six billion, four hundred forty-six million, two hundred fifty-one thousand, two hundred forty-eight".