4121556372 has 60 divisors (see below), whose sum is σ = 10822220640. Its totient is φ = 1367775504.

The previous prime is 4121556353. The next prime is 4121556419. The reversal of 4121556372 is 2736551214.

4121556372 is a `hidden beast` number, since 4 + 1 + 2 + 15 + 5 + 637 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent 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 19 ways as a sum of consecutive naturals, for example, 45529 + ... + 101567.

It is an arithmetic number, because the mean of its divisors is an integer number (180370344).

Almost surely, 2^4121556372 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 4121556372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5411110320).

4121556372 is an abundant number, since it is smaller than the sum of its proper divisors (6700664268).

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

4121556372 is a wasteful number, since it uses less digits than its factorization.

4121556372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56282 (or 56271 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 4121556372 is about 64199.3486882850. The cubic root of 4121556372 is about 1603.3207556995.

The spelling of 4121556372 in words is "four billion, one hundred twenty-one million, five hundred fifty-six thousand, three hundred seventy-two".