393442059455 has 4 divisors (see below), whose sum is σ = 472130471352. Its totient is φ = 314753647560.

The previous prime is 393442059403. The next prime is 393442059457. The reversal of 393442059455 is 554950244393.

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

It is not a de Polignac number, because 393442059455 - 2⁶ = 393442059391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 393442059397 and 393442059406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393442059457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39344205941 + ... + 39344205950.

It is an arithmetic number, because the mean of its divisors is an integer number (118032617838).

Almost surely, 2^393442059455 is an apocalyptic number.

393442059455 is a deficient number, since it is larger than the sum of its proper divisors (78688411897).

393442059455 is an equidigital number, since it uses as much as digits as its factorization.

393442059455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78688411896.

The product of its (nonzero) digits is 11664000, while the sum is 53.

The spelling of 393442059455 in words is "three hundred ninety-three billion, four hundred forty-two million, fifty-nine thousand, four hundred fifty-five".