1860867013 has 2 divisors, whose sum is σ = 1860867014. Its totient is φ = 1860867012.

The previous prime is 1860867007. The next prime is 1860867023. The reversal of 1860867013 is 3107680681.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1574343684 + 286523329 = 39678^2 + 16927^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1860867013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1860867023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 930433506 + 930433507.

It is an arithmetic number, because the mean of its divisors is an integer number (930433507).

Almost surely, 2^1860867013 is an apocalyptic number.

It is an amenable number.

1860867013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1860867013 is an equidigital number, since it uses as much as digits as its factorization.

1860867013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 1860867013 is about 43137.7678258855. The cubic root of 1860867013 is about 1230.0000028643. Note that the first 5 decimals are identical.

The spelling of 1860867013 in words is "one billion, eight hundred sixty million, eight hundred sixty-seven thousand, thirteen".