7942057947942 has 8 divisors (see below), whose sum is σ = 15884115895896. Its totient is φ = 2647352649312.

The previous prime is 7942057947931. The next prime is 7942057947977. The reversal of 7942057947942 is 2497497502497.

It is a sphenic number, since it is the product of 3 distinct primes.

7942057947942 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661838162323 + ... + 661838162334.

It is an arithmetic number, because the mean of its divisors is an integer number (1985514486987).

Almost surely, 2^{7942057947942} is an apocalyptic number.

7942057947942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7942057947942 is a wasteful number, since it uses less digits than its factorization.

7942057947942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323676324662.

The product of its (nonzero) digits is 320060160, while the sum is 69.

The spelling of 7942057947942 in words is "seven trillion, nine hundred forty-two billion, fifty-seven million, nine hundred forty-seven thousand, nine hundred forty-two".