7643481528 has 32 divisors (see below), whose sum is σ = 19111055760. Its totient is φ = 2547513600.

The previous prime is 7643481511. The next prime is 7643481553. The reversal of 7643481528 is 8251843467.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262078 + ... + 289778.

Almost surely, 2^7643481528 is an apocalyptic number.

It is an amenable number.

7643481528 is an abundant number, since it is smaller than the sum of its proper divisors (11467574232).

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

7643481528 is a wasteful number, since it uses less digits than its factorization.

7643481528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39207 (or 39203 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The square root of 7643481528 is about 87427.0068571491. The cubic root of 7643481528 is about 1969.8375266901.

The spelling of 7643481528 in words is "seven billion, six hundred forty-three million, four hundred eighty-one thousand, five hundred twenty-eight".