394108150663 has 4 divisors (see below), whose sum is σ = 397723821880. Its totient is φ = 390492479448.

The previous prime is 394108150661. The next prime is 394108150697. The reversal of 394108150663 is 366051801493.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 394108150663 - 2¹ = 394108150661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394108150661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1807835445 + ... + 1807835662.

It is an arithmetic number, because the mean of its divisors is an integer number (99430955470).

Almost surely, 2^394108150663 is an apocalyptic number.

394108150663 is a deficient number, since it is larger than the sum of its proper divisors (3615671217).

394108150663 is a wasteful number, since it uses less digits than its factorization.

394108150663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615671216.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 394108150663 in words is "three hundred ninety-four billion, one hundred eight million, one hundred fifty thousand, six hundred sixty-three".