8478749130742 has 16 divisors (see below), whose sum is σ = 14477547923712. Its totient is φ = 3686412665320.

The previous prime is 8478749130737. The next prime is 8478749130743. The reversal of 8478749130742 is 2470319478748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8478749130743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8378210098 + ... + 8378211109.

It is an arithmetic number, because the mean of its divisors is an integer number (904846745232).

Almost surely, 2^{8478749130742} is an apocalyptic number.

8478749130742 is a deficient number, since it is larger than the sum of its proper divisors (5998798792970).

8478749130742 is a wasteful number, since it uses less digits than its factorization.

8478749130742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16756421243.

The product of its (nonzero) digits is 75866112, while the sum is 64.

The spelling of 8478749130742 in words is "eight trillion, four hundred seventy-eight billion, seven hundred forty-nine million, one hundred thirty thousand, seven hundred forty-two".