3772880161 has 8 divisors (see below), whose sum is σ = 3784210920. Its totient is φ = 3761566848.

The previous prime is 3772880143. The next prime is 3772880173. The reversal of 3772880161 is 1610882773.

It can be written as a sum of positive squares in 4 ways, for example, as 217739536 + 3555140625 = 14756^2 + 59625^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3772880161 - 2¹³ = 3772871969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3772880131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518295 + ... + 525523.

It is an arithmetic number, because the mean of its divisors is an integer number (473026365).

Almost surely, 2^3772880161 is an apocalyptic number.

It is an amenable number.

3772880161 is a deficient number, since it is larger than the sum of its proper divisors (11330759).

3772880161 is an equidigital number, since it uses as much as digits as its factorization.

3772880161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8723.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 3772880161 is about 61423.7752096043. The cubic root of 3772880161 is about 1556.7695808771.

The spelling of 3772880161 in words is "three billion, seven hundred seventy-two million, eight hundred eighty thousand, one hundred sixty-one".