7643744016 has 40 divisors (see below), whose sum is σ = 19816645344. Its totient is φ = 2538842880.

The previous prime is 7643743993. The next prime is 7643744041. The reversal of 7643744016 is 6104473467.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269866 + ... + 296841.

Almost surely, 2^7643744016 is an apocalyptic number.

It is an amenable number.

7643744016 is an abundant number, since it is smaller than the sum of its proper divisors (12172901328).

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

7643744016 is a wasteful number, since it uses less digits than its factorization.

7643744016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566999 (or 566993 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 42.

The square root of 7643744016 is about 87428.5080279882. The cubic root of 7643744016 is about 1969.8600754371.

The spelling of 7643744016 in words is "seven billion, six hundred forty-three million, seven hundred forty-four thousand, sixteen".