394668095651 has 8 divisors (see below), whose sum is σ = 399436594704. Its totient is φ = 389899917280.

The previous prime is 394668095639. The next prime is 394668095659. The reversal of 394668095651 is 156590866493.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394668095651 is a prime.

It is a super-2 number, since 2×394668095651² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394668095659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3202841 + ... + 3323781.

It is an arithmetic number, because the mean of its divisors is an integer number (49929574338).

Almost surely, 2^394668095651 is an apocalyptic number.

394668095651 is a deficient number, since it is larger than the sum of its proper divisors (4768499053).

394668095651 is a wasteful number, since it uses less digits than its factorization.

394668095651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160341.

The product of its (nonzero) digits is 41990400, while the sum is 62.

The spelling of 394668095651 in words is "three hundred ninety-four billion, six hundred sixty-eight million, ninety-five thousand, six hundred fifty-one".