8743639012 has 12 divisors (see below), whose sum is σ = 15305928316. Its totient is φ = 4370516640.

The previous prime is 8743638973. The next prime is 8743639057. The reversal of 8743639012 is 2109363478.

It can be written as a sum of positive squares in 2 ways, for example, as 8713102336 + 30536676 = 93344^2 + 5526^2 .

It is a super-2 number, since 2×8743639012² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 8743639012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310539 + ... + 337522.

Almost surely, 2^8743639012 is an apocalyptic number.

It is an amenable number.

8743639012 is a deficient number, since it is larger than the sum of its proper divisors (6562289304).

8743639012 is a wasteful number, since it uses less digits than its factorization.

8743639012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651438 (or 651436 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 8743639012 is about 93507.4275766369. The cubic root of 8743639012 is about 2060.1431870182.

The spelling of 8743639012 in words is "eight billion, seven hundred forty-three million, six hundred thirty-nine thousand, twelve".