6456671528 has 16 divisors (see below), whose sum is σ = 12231067380. Its totient is φ = 3195053568.

The previous prime is 6456671521. The next prime is 6456671581. The reversal of 6456671528 is 8251766546.

It can be written as a sum of positive squares in 2 ways, for example, as 6247637764 + 209033764 = 79042^2 + 14458^2 .

It is not an unprimeable number, because it can be changed into a prime (6456671521) 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, 4159451 + ... + 4161002.

Almost surely, 2^6456671528 is an apocalyptic number.

It is an amenable number.

6456671528 is a deficient number, since it is larger than the sum of its proper divisors (5774395852).

6456671528 is a wasteful number, since it uses less digits than its factorization.

6456671528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8320556 (or 8320552 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 50.

The square root of 6456671528 is about 80353.4164052780. The cubic root of 6456671528 is about 1862.0995607621.

The spelling of 6456671528 in words is "six billion, four hundred fifty-six million, six hundred seventy-one thousand, five hundred twenty-eight".