394261033642 has 32 divisors (see below), whose sum is σ = 712223078400. Its totient is φ = 159901624368.

The previous prime is 394261033637. The next prime is 394261033651. The reversal of 394261033642 is 246330162493.

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 15 ways as a sum of consecutive naturals, for example, 561958 + ... + 1050865.

It is an arithmetic number, because the mean of its divisors is an integer number (22256971200).

Almost surely, 2^394261033642 is an apocalyptic number.

394261033642 is a deficient number, since it is larger than the sum of its proper divisors (317962044758).

394261033642 is a wasteful number, since it uses less digits than its factorization.

394261033642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613770.

The product of its (nonzero) digits is 559872, while the sum is 43.

The spelling of 394261033642 in words is "three hundred ninety-four billion, two hundred sixty-one million, thirty-three thousand, six hundred forty-two".