4078812187 has 2 divisors, whose sum is σ = 4078812188. Its totient is φ = 4078812186.

The previous prime is 4078812181. The next prime is 4078812211. The reversal of 4078812187 is 7812188704.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4078812187 is a prime.

It is not a weakly prime, because it can be changed into another prime (4078812181) by changing a digit.

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 as a sum of consecutive naturals, namely, 2039406093 + 2039406094.

It is an arithmetic number, because the mean of its divisors is an integer number (2039406094).

Almost surely, 2^4078812187 is an apocalyptic number.

4078812187 is a deficient number, since it is larger than the sum of its proper divisors (1).

4078812187 is an equidigital number, since it uses as much as digits as its factorization.

4078812187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200704, while the sum is 46.

The square root of 4078812187 is about 63865.5790469326. The cubic root of 4078812187 is about 1597.7588658048.

It can be divided in two parts, 40788 and 12187, that added together give a triangular number (52975 = T₃₂₅).

The spelling of 4078812187 in words is "four billion, seventy-eight million, eight hundred twelve thousand, one hundred eighty-seven".