393090668464 has 40 divisors (see below), whose sum is σ = 846656838272. Its totient is φ = 175573992960.

The previous prime is 393090668447. The next prime is 393090668489. The reversal of 393090668464 is 464866090393.

It is a junction number, because it is equal to n+sod(n) for n = 393090668399 and 393090668408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30475149 + ... + 30488044.

Almost surely, 2^393090668464 is an apocalyptic number.

It is an amenable number.

393090668464 is an abundant number, since it is smaller than the sum of its proper divisors (453566169808).

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

393090668464 is a wasteful number, since it uses less digits than its factorization.

393090668464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60963245 (or 60963239 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 58.

The spelling of 393090668464 in words is "three hundred ninety-three billion, ninety million, six hundred sixty-eight thousand, four hundred sixty-four".