4215968838 has 56 divisors (see below), whose sum is σ = 9506555496. Its totient is φ = 1401624000.

The previous prime is 4215968833. The next prime is 4215968849. The reversal of 4215968838 is 8388695124.

4215968838 is a `hidden beast` number, since 42 + 1 + 596 + 8 + 8 + 3 + 8 = 666.

4215968838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4215968831) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 581053 + ... + 588263.

Almost surely, 2^4215968838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4215968838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4753277748).

4215968838 is an abundant number, since it is smaller than the sum of its proper divisors (5290586658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4215968838 is an equidigital number, since it uses as much as digits as its factorization.

4215968838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7632 (or 7617 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The square root of 4215968838 is about 64930.4923591374. The cubic root of 4215968838 is about 1615.4708679502.

The spelling of 4215968838 in words is "four billion, two hundred fifteen million, nine hundred sixty-eight thousand, eight hundred thirty-eight".