7831003394942 has 64 divisors (see below), whose sum is σ = 16113329326080. Its totient is φ = 2762284985856.

The previous prime is 7831003394933. The next prime is 7831003395013. The reversal of 7831003394942 is 2494933001387.

It is a super-2 number, since 2×7831003394942² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66547238 + ... + 66664809.

It is an arithmetic number, because the mean of its divisors is an integer number (251770770720).

Almost surely, 2^{7831003394942} is an apocalyptic number.

7831003394942 is an abundant number, since it is smaller than the sum of its proper divisors (8282325931138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7831003394942 is a wasteful number, since it uses less digits than its factorization.

7831003394942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133212105.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 7831003394942 in words is "seven trillion, eight hundred thirty-one billion, three million, three hundred ninety-four thousand, nine hundred forty-two".