1868066025 has 24 divisors (see below), whose sum is σ = 3529756224. Its totient is φ = 853972800.

The previous prime is 1868066023. The next prime is 1868066033. The reversal of 1868066025 is 5206608681.

It is not a de Polignac number, because 1868066025 - 2¹ = 1868066023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1868066021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1778586 + ... + 1779635.

It is an arithmetic number, because the mean of its divisors is an integer number (147073176).

Almost surely, 2^1868066025 is an apocalyptic number.

1868066025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1868066025 is a deficient number, since it is larger than the sum of its proper divisors (1661690199).

1868066025 is a wasteful number, since it uses less digits than its factorization.

1868066025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558241 (or 3558236 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 1868066025 is about 43221.1293813570. The cubic root of 1868066025 is about 1231.5841014876.

The spelling of 1868066025 in words is "one billion, eight hundred sixty-eight million, sixty-six thousand, twenty-five".