393934118011 has 4 divisors (see below), whose sum is σ = 450210420592. Its totient is φ = 337657815432.

The previous prime is 393934117949. The next prime is 393934118029. The reversal of 393934118011 is 110811439393.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 393934118011 - 2²⁹ = 393397247099 is a prime.

It is a super-2 number, since 2×393934118011² (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 (393934118311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28138151280 + ... + 28138151293.

It is an arithmetic number, because the mean of its divisors is an integer number (112552605148).

Almost surely, 2^393934118011 is an apocalyptic number.

393934118011 is a deficient number, since it is larger than the sum of its proper divisors (56276302581).

393934118011 is an equidigital number, since it uses as much as digits as its factorization.

393934118011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56276302580.

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 393934118011 in words is "three hundred ninety-three billion, nine hundred thirty-four million, one hundred eighteen thousand, eleven".