1939473663922 has 8 divisors (see below), whose sum is σ = 2909306749356. Its totient is φ = 969704747472.

The previous prime is 1939473663917. The next prime is 1939473663929. The reversal of 1939473663922 is 2293663749391.

It can be written as a sum of positive squares in 2 ways, for example, as 1931263310601 + 8210353321 = 1389699^2 + 90611^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1939473663929) 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, 15966613 + ... + 16087624.

Almost surely, 2^{1939473663922} is an apocalyptic number.

1939473663922 is a deficient number, since it is larger than the sum of its proper divisors (969833085434).

1939473663922 is a wasteful number, since it uses less digits than its factorization.

1939473663922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32084492.

The product of its digits is 79361856, while the sum is 64.

The spelling of 1939473663922 in words is "one trillion, nine hundred thirty-nine billion, four hundred seventy-three million, six hundred sixty-three thousand, nine hundred twenty-two".