394365096851 has 12 divisors (see below), whose sum is σ = 454051181304. Its totient is φ = 339644577600.

The previous prime is 394365096823. The next prime is 394365096871. The reversal of 394365096851 is 158690563493.

It is a happy number.

It is not a de Polignac number, because 394365096851 - 2¹⁰ = 394365095827 is a prime.

It is a super-2 number, since 2×394365096851² (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 (394365096871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49651670 + ... + 49659611.

It is an arithmetic number, because the mean of its divisors is an integer number (37837598442).

Almost surely, 2^394365096851 is an apocalyptic number.

394365096851 is a deficient number, since it is larger than the sum of its proper divisors (59686084453).

394365096851 is a wasteful number, since it uses less digits than its factorization.

394365096851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99311330 (or 99311311 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 59.

The spelling of 394365096851 in words is "three hundred ninety-four billion, three hundred sixty-five million, ninety-six thousand, eight hundred fifty-one".