7638514018 has 32 divisors (see below), whose sum is σ = 12759482880. Its totient is φ = 3412980480.

The previous prime is 7638514003. The next prime is 7638514019. The reversal of 7638514018 is 8104158367.

It is not an unprimeable number, because it can be changed into a prime (7638514019) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12508 + ... + 124231.

It is an arithmetic number, because the mean of its divisors is an integer number (398733840).

Almost surely, 2^7638514018 is an apocalyptic number.

7638514018 is a deficient number, since it is larger than the sum of its proper divisors (5120968862).

7638514018 is a wasteful number, since it uses less digits than its factorization.

7638514018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136842.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 7638514018 is about 87398.5927689914. The cubic root of 7638514018 is about 1969.4107007668.

The spelling of 7638514018 in words is "seven billion, six hundred thirty-eight million, five hundred fourteen thousand, eighteen".