4119639421 has 4 divisors (see below), whose sum is σ = 4158140832. Its totient is φ = 4081138012.

The previous prime is 4119639389. The next prime is 4119639431. The reversal of 4119639421 is 1249369114.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4119639421 - 2⁵ = 4119639389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4119639431) 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, 19250545 + ... + 19250758.

It is an arithmetic number, because the mean of its divisors is an integer number (1039535208).

Almost surely, 2^4119639421 is an apocalyptic number.

It is an amenable number.

4119639421 is a deficient number, since it is larger than the sum of its proper divisors (38501411).

4119639421 is a wasteful number, since it uses less digits than its factorization.

4119639421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38501410.

The product of its digits is 46656, while the sum is 40.

The square root of 4119639421 is about 64184.4172755350. The cubic root of 4119639421 is about 1603.0721470294.

The spelling of 4119639421 in words is "four billion, one hundred nineteen million, six hundred thirty-nine thousand, four hundred twenty-one".