4921879144 has 64 divisors (see below), whose sum is σ = 11381610240. Its totient is φ = 1943101440.

The previous prime is 4921879141. The next prime is 4921879163. The reversal of 4921879144 is 4419781294.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4921879141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359464 + ... + 372904.

It is an arithmetic number, because the mean of its divisors is an integer number (177837660).

Almost surely, 2^4921879144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4921879144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5690805120).

4921879144 is an abundant number, since it is smaller than the sum of its proper divisors (6459731096).

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

4921879144 is a wasteful number, since it uses less digits than its factorization.

4921879144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13970 (or 13966 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 4921879144 is about 70156.1055361542. The cubic root of 4921879144 is about 1701.0235063835.

The spelling of 4921879144 in words is "four billion, nine hundred twenty-one million, eight hundred seventy-nine thousand, one hundred forty-four".