1868260705 has 8 divisors (see below), whose sum is σ = 2244132072. Its totient is φ = 1493129088.

The previous prime is 1868260699. The next prime is 1868260733. The reversal of 1868260705 is 5070628681.

It can be written as a sum of positive squares in 4 ways, for example, as 30338064 + 1837922641 = 5508^2 + 42871^2 .

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 1868260705 - 2¹³ = 1868252513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179364 + ... + 189493.

It is an arithmetic number, because the mean of its divisors is an integer number (280516509).

Almost surely, 2^1868260705 is an apocalyptic number.

It is an amenable number.

1868260705 is a deficient number, since it is larger than the sum of its proper divisors (375871367).

1868260705 is a wasteful number, since it uses less digits than its factorization.

1868260705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369875.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 1868260705 is about 43223.3814618894. The cubic root of 1868260705 is about 1231.6268830705.

The spelling of 1868260705 in words is "one billion, eight hundred sixty-eight million, two hundred sixty thousand, seven hundred five".