3921919955 has 8 divisors (see below), whose sum is σ = 4727409792. Its totient is φ = 3123465408.

The previous prime is 3921919943. The next prime is 3921919999. The reversal of 3921919955 is 5599191293.

3921919955 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 3921919955 - 2⁶ = 3921919891 is a prime.

It is a super-2 number, since 2×3921919955² = 30762912266854404050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3921919897 and 3921919906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1757594 + ... + 1759823.

It is an arithmetic number, because the mean of its divisors is an integer number (590926224).

Almost surely, 2^3921919955 is an apocalyptic number.

3921919955 is a deficient number, since it is larger than the sum of its proper divisors (805489837).

3921919955 is a wasteful number, since it uses less digits than its factorization.

3921919955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517645.

The product of its digits is 984150, while the sum is 53.

The square root of 3921919955 is about 62625.2341712189. The cubic root of 3921919955 is about 1577.0044126589.

The spelling of 3921919955 in words is "three billion, nine hundred twenty-one million, nine hundred nineteen thousand, nine hundred fifty-five".