394713085111506 has 64 divisors (see below), whose sum is σ = 1002448440576000. Its totient is φ = 112774884784848.

The previous prime is 394713085111469. The next prime is 394713085111589. The reversal of 394713085111506 is 605111580317493.

394713085111506 is a `hidden beast` number, since 3 + 9 + 4 + 7 + 13 + 0 + 8 + 5 + 111 + 506 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184876411 + ... + 186999233.

It is an arithmetic number, because the mean of its divisors is an integer number (15663256884000).

Almost surely, 2^{394713085111506} is an apocalyptic number.

394713085111506 is an abundant number, since it is smaller than the sum of its proper divisors (607735355464494).

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

394713085111506 is a wasteful number, since it uses less digits than its factorization.

394713085111506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2614740 (or 2614734 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 394713085111506 in words is "three hundred ninety-four trillion, seven hundred thirteen billion, eighty-five million, one hundred eleven thousand, five hundred six".