4125399980 has 96 divisors (see below), whose sum is σ = 9469970496. Its totient is φ = 1500512256.

The previous prime is 4125399977. The next prime is 4125400003. The reversal of 4125399980 is 899935214.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7149452 + ... + 7150028.

It is an arithmetic number, because the mean of its divisors is an integer number (98645526).

Almost surely, 2^4125399980 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 4125399980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4734985248).

4125399980 is an abundant number, since it is smaller than the sum of its proper divisors (5344570516).

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

4125399980 is a wasteful number, since it uses less digits than its factorization.

4125399980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963 (or 961 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 4125399980 is about 64229.2766579229. The cubic root of 4125399980 is about 1603.8189996693.

The spelling of 4125399980 in words is "four billion, one hundred twenty-five million, three hundred ninety-nine thousand, nine hundred eighty".