4380975781 has 12 divisors (see below), whose sum is σ = 5488256172. Its totient is φ = 3466266048.

The previous prime is 4380975763. The next prime is 4380975811. The reversal of 4380975781 is 1875790834.

It can be written as a sum of positive squares in 2 ways, for example, as 1901832100 + 2479143681 = 43610^2 + 49791^2 .

It is not a de Polignac number, because 4380975781 - 2¹¹ = 4380973733 is a prime.

It is a super-2 number, since 2×4380975781² = 38385897587417119922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4380975881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3438120 + ... + 3439393.

It is an arithmetic number, because the mean of its divisors is an integer number (457354681).

Almost surely, 2^4380975781 is an apocalyptic number.

It is an amenable number.

4380975781 is a deficient number, since it is larger than the sum of its proper divisors (1107280391).

4380975781 is a wasteful number, since it uses less digits than its factorization.

4380975781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6877540 (or 6877533 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 52.

The square root of 4380975781 is about 66188.9400202179. The cubic root of 4380975781 is about 1636.2774706322.

The spelling of 4380975781 in words is "four billion, three hundred eighty million, nine hundred seventy-five thousand, seven hundred eighty-one".