4180552861 has 2 divisors, whose sum is σ = 4180552862. Its totient is φ = 4180552860.

The previous prime is 4180552847. The next prime is 4180552879. The reversal of 4180552861 is 1682550814.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4177683225 + 2869636 = 64635^2 + 1694^2 .

It is a cyclic number.

It is not a de Polignac number, because 4180552861 - 2¹⁵ = 4180520093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4180552811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2090276430 + 2090276431.

It is an arithmetic number, because the mean of its divisors is an integer number (2090276431).

Almost surely, 2^4180552861 is an apocalyptic number.

It is an amenable number.

4180552861 is a deficient number, since it is larger than the sum of its proper divisors (1).

4180552861 is an equidigital number, since it uses as much as digits as its factorization.

4180552861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 4180552861 is about 64657.1949669950. The cubic root of 4180552861 is about 1610.9345886079.

The spelling of 4180552861 in words is "four billion, one hundred eighty million, five hundred fifty-two thousand, eight hundred sixty-one".