7867447042 has 32 divisors (see below), whose sum is σ = 14622048000. Its totient is φ = 3091497408.

The previous prime is 7867447037. The next prime is 7867447057. The reversal of 7867447042 is 2407447687.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117942 + ... + 172177.

It is an arithmetic number, because the mean of its divisors is an integer number (456939000).

Almost surely, 2^7867447042 is an apocalyptic number.

7867447042 is a deficient number, since it is larger than the sum of its proper divisors (6754600958).

7867447042 is a wasteful number, since it uses less digits than its factorization.

7867447042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290290.

The product of its (nonzero) digits is 2107392, while the sum is 49.

The square root of 7867447042 is about 88698.6304403850. The cubic root of 7867447042 is about 1988.8923443650.

The spelling of 7867447042 in words is "seven billion, eight hundred sixty-seven million, four hundred forty-seven thousand, forty-two".