7638893042 has 16 divisors (see below), whose sum is σ = 12501712800. Its totient is φ = 3471750240.

The previous prime is 7638893039. The next prime is 7638893063. The reversal of 7638893042 is 2403988367.

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, 180134 + ... + 218462.

It is an arithmetic number, because the mean of its divisors is an integer number (781357050).

Almost surely, 2^7638893042 is an apocalyptic number.

7638893042 is a deficient number, since it is larger than the sum of its proper divisors (4862819758).

7638893042 is a wasteful number, since it uses less digits than its factorization.

7638893042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47401.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The square root of 7638893042 is about 87400.7611065258. The cubic root of 7638893042 is about 1969.4432743613.

The spelling of 7638893042 in words is "seven billion, six hundred thirty-eight million, eight hundred ninety-three thousand, forty-two".