3942456781742 has 16 divisors (see below), whose sum is σ = 6153461255232. Its totient is φ = 1892885710560.

The previous prime is 3942456781693. The next prime is 3942456781759. The reversal of 3942456781742 is 2471876542493.

It is a congruent number.

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, 395665109 + ... + 395675072.

It is an arithmetic number, because the mean of its divisors is an integer number (384591328452).

Almost surely, 2^{3942456781742} is an apocalyptic number.

3942456781742 is a deficient number, since it is larger than the sum of its proper divisors (2211004473490).

3942456781742 is a wasteful number, since it uses less digits than its factorization.

3942456781742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791340283.

The product of its digits is 81285120, while the sum is 62.

The spelling of 3942456781742 in words is "three trillion, nine hundred forty-two billion, four hundred fifty-six million, seven hundred eighty-one thousand, seven hundred forty-two".