393773101922 has 18 divisors (see below), whose sum is σ = 594441442497. Its totient is φ = 195633932224.

The previous prime is 393773101921. The next prime is 393773101987. The reversal of 393773101922 is 229101377393.

It can be written as a sum of positive squares in 2 ways, for example, as 384488045041 + 9285056881 = 620071^2 + 96359^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=443719.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (393773101921) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 148200818 + ... + 148203474.

Almost surely, 2^393773101922 is an apocalyptic number.

393773101922 is a deficient number, since it is larger than the sum of its proper divisors (200668340575).

393773101922 is an frugal number, since it uses more digits than its factorization.

393773101922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5650 (or 2826 counting only the distinct ones).

The product of its (nonzero) digits is 428652, while the sum is 47.

The spelling of 393773101922 in words is "three hundred ninety-three billion, seven hundred seventy-three million, one hundred one thousand, nine hundred twenty-two".