4663191938 has 12 divisors (see below), whose sum is σ = 7244307330. Its totient is φ = 2251195296.

The previous prime is 4663191899. The next prime is 4663191941. The reversal of 4663191938 is 8391913664.

It can be written as a sum of positive squares in 3 ways, for example, as 4620328729 + 42863209 = 67973^2 + 6547^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1384523 + ... + 1387886.

Almost surely, 2^4663191938 is an apocalyptic number.

4663191938 is a deficient number, since it is larger than the sum of its proper divisors (2581115392).

4663191938 is a wasteful number, since it uses less digits than its factorization.

4663191938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772469 (or 2772440 counting only the distinct ones).

The product of its digits is 839808, while the sum is 50.

The square root of 4663191938 is about 68287.5679607936. The cubic root of 4663191938 is about 1670.6844503368.

The spelling of 4663191938 in words is "four billion, six hundred sixty-three million, one hundred ninety-one thousand, nine hundred thirty-eight".