394070973471 has 48 divisors (see below), whose sum is σ = 660334970880. Its totient is φ = 221795521920.

The previous prime is 394070973451. The next prime is 394070973503. The reversal of 394070973471 is 174379070493.

394070973471 is a `hidden beast` number, since 39 + 4 + 0 + 70 + 9 + 73 + 471 = 666.

It is not a de Polignac number, because 394070973471 - 2¹⁰ = 394070972447 is a prime.

It is a super-3 number, since 3×394070973471³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394070973451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4605051 + ... + 4689843.

It is an arithmetic number, because the mean of its divisors is an integer number (13756978560).

Almost surely, 2^394070973471 is an apocalyptic number.

394070973471 is a deficient number, since it is larger than the sum of its proper divisors (266263997409).

394070973471 is a wasteful number, since it uses less digits than its factorization.

394070973471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85916 (or 85913 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 54.

The spelling of 394070973471 in words is "three hundred ninety-four billion, seventy million, nine hundred seventy-three thousand, four hundred seventy-one".