393946723412 has 12 divisors (see below), whose sum is σ = 752080108416. Its totient is φ = 179066692440.

The previous prime is 393946723369. The next prime is 393946723433. The reversal of 393946723412 is 214327649393.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4476667268 + ... + 4476667355.

It is an arithmetic number, because the mean of its divisors is an integer number (62673342368).

Almost surely, 2^393946723412 is an apocalyptic number.

It is an amenable number.

393946723412 is a deficient number, since it is larger than the sum of its proper divisors (358133385004).

393946723412 is a wasteful number, since it uses less digits than its factorization.

393946723412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8953334638 (or 8953334636 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 53.

The spelling of 393946723412 in words is "three hundred ninety-three billion, nine hundred forty-six million, seven hundred twenty-three thousand, four hundred twelve".