4125946644 has 18 divisors (see below), whose sum is σ = 10429476330. Its totient is φ = 1375315536.

The previous prime is 4125946637. The next prime is 4125946661. The reversal of 4125946644 is 4466495214.

4125946644 is a `hidden beast` number, since 4 + 12 + 594 + 6 + 6 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2233696644 + 1892250000 = 47262^2 + 43500^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 4125946644.

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 5 ways as a sum of consecutive naturals, for example, 57304779 + ... + 57304850.

Almost surely, 2^4125946644 is an apocalyptic number.

It is an amenable number.

4125946644 is an abundant number, since it is smaller than the sum of its proper divisors (6303529686).

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

4125946644 is a wasteful number, since it uses less digits than its factorization.

4125946644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114609639 (or 114609634 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 4125946644 is about 64233.5320841070. The cubic root of 4125946644 is about 1603.8898381650.

The spelling of 4125946644 in words is "four billion, one hundred twenty-five million, nine hundred forty-six thousand, six hundred forty-four".