4375756932561 has 27 divisors (see below), whose sum is σ = 7352536141353. Its totient is φ = 2500407430920.

The previous prime is 4375756932551. The next prime is 4375756932587. The reversal of 4375756932561 is 1652396575734.

It is a happy number.

The square root of 4375756932561 is 2091831.

It is a perfect power (a square), and thus also a powerful number.

4375756932561 is a `hidden beast` number, since 4 + 3 + 7 + 5 + 7 + 5 + 69 + 3 + 2 + 561 = 666.

It is not a de Polignac number, because 4375756932561 - 2⁷ = 4375756932433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (4375756932511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 43878646 + ... + 43978256.

Almost surely, 2^{4375756932561} is an apocalyptic number.

4375756932561 is the 2091831-st square number.

4375756932561 is the 1045916-th centered octagonal number.

It is an amenable number.

4375756932561 is a deficient number, since it is larger than the sum of its proper divisors (2976779208792).

4375756932561 is an frugal number, since it uses more digits than its factorization.

4375756932561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199242 (or 99621 counting only the distinct ones).

The product of its digits is 142884000, while the sum is 63.

The spelling of 4375756932561 in words is "four trillion, three hundred seventy-five billion, seven hundred fifty-six million, nine hundred thirty-two thousand, five hundred sixty-one".