1878066265 has 16 divisors (see below), whose sum is σ = 2357312256. Its totient is φ = 1433678400.

The previous prime is 1878066263. The next prime is 1878066287. The reversal of 1878066265 is 5626608781.

It is not a de Polignac number, because 1878066265 - 2¹ = 1878066263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1878066263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29020 + ... + 67810.

It is an arithmetic number, because the mean of its divisors is an integer number (147332016).

Almost surely, 2^1878066265 is an apocalyptic number.

It is an amenable number.

1878066265 is a deficient number, since it is larger than the sum of its proper divisors (479245991).

1878066265 is a wasteful number, since it uses less digits than its factorization.

1878066265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39240.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 1878066265 is about 43336.6619042122. The cubic root of 1878066265 is about 1233.7778541718. Note that the first 3 decimals are identical.

The spelling of 1878066265 in words is "one billion, eight hundred seventy-eight million, sixty-six thousand, two hundred sixty-five".