396785714646 has 32 divisors (see below), whose sum is σ = 794820096000. Its totient is φ = 132053961600.

The previous prime is 396785714641. The next prime is 396785714659. The reversal of 396785714646 is 646417587693.

It is a super-3 number, since 3×396785714646³ (a number of 36 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396785714641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10061515 + ... + 10100873.

It is an arithmetic number, because the mean of its divisors is an integer number (24838128000).

Almost surely, 2^396785714646 is an apocalyptic number.

396785714646 is an abundant number, since it is smaller than the sum of its proper divisors (398034381354).

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

396785714646 is a wasteful number, since it uses less digits than its factorization.

396785714646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41964.

The product of its digits is 182891520, while the sum is 66.

The spelling of 396785714646 in words is "three hundred ninety-six billion, seven hundred eighty-five million, seven hundred fourteen thousand, six hundred forty-six".