1868093761 has 4 divisors (see below), whose sum is σ = 1870729300. Its totient is φ = 1865458224.

The previous prime is 1868093729. The next prime is 1868093771. The reversal of 1868093761 is 1673908681.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 953636161 + 914457600 = 30881^2 + 30240^2 .

It is a cyclic number.

It is not a de Polignac number, because 1868093761 - 2⁵ = 1868093729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1868093771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1316706 + ... + 1318123.

It is an arithmetic number, because the mean of its divisors is an integer number (467682325).

Almost surely, 2^1868093761 is an apocalyptic number.

It is an amenable number.

1868093761 is a deficient number, since it is larger than the sum of its proper divisors (2635539).

1868093761 is an equidigital number, since it uses as much as digits as its factorization.

1868093761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635538.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 1868093761 is about 43221.4502417492. The cubic root of 1868093761 is about 1231.5901967482.

The spelling of 1868093761 in words is "one billion, eight hundred sixty-eight million, ninety-three thousand, seven hundred sixty-one".