394347139901 has 24 divisors (see below), whose sum is σ = 468042703200. Its totient is φ = 329352004800.

The previous prime is 394347139891. The next prime is 394347139909. The reversal of 394347139901 is 109931743493.

It is not a de Polignac number, because 394347139901 - 2³⁸ = 119469232957 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 (394347139909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110426 + ... + 894923.

It is an arithmetic number, because the mean of its divisors is an integer number (19501779300).

Almost surely, 2^394347139901 is an apocalyptic number.

It is an amenable number.

394347139901 is a deficient number, since it is larger than the sum of its proper divisors (73695563299).

394347139901 is a wasteful number, since it uses less digits than its factorization.

394347139901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005597 (or 1005584 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 53.

The spelling of 394347139901 in words is "three hundred ninety-four billion, three hundred forty-seven million, one hundred thirty-nine thousand, nine hundred one".