6448427530 has 32 divisors (see below), whose sum is σ = 12036165840. Its totient is φ = 2484464640.

The previous prime is 6448427509. The next prime is 6448427551. The reversal of 6448427530 is 357248446.

It is an interprime number because it is at equal distance from previous prime (6448427509) and next prime (6448427551).

It can be written as a sum of positive squares in 8 ways, for example, as 1461681 + 6446965849 = 1209^2 + 80293^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95682 + ... + 148498.

Almost surely, 2^6448427530 is an apocalyptic number.

6448427530 is a deficient number, since it is larger than the sum of its proper divisors (5587738310).

6448427530 is a wasteful number, since it uses less digits than its factorization.

6448427530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53274.

The product of its (nonzero) digits is 645120, while the sum is 43.

The square root of 6448427530 is about 80302.1016536927. The cubic root of 6448427530 is about 1861.3067021316.

The spelling of 6448427530 in words is "six billion, four hundred forty-eight million, four hundred twenty-seven thousand, five hundred thirty".