1866835498007 has 2 divisors, whose sum is σ = 1866835498008. Its totient is φ = 1866835498006.

The previous prime is 1866835498001. The next prime is 1866835498019. The reversal of 1866835498007 is 7008945386681.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1866835498007 - 2²² = 1866831303703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1866835498001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 933417749003 + 933417749004.

It is an arithmetic number, because the mean of its divisors is an integer number (933417749004).

Almost surely, 2^{1866835498007} is an apocalyptic number.

1866835498007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1866835498007 is an equidigital number, since it uses as much as digits as its factorization.

1866835498007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69672960, while the sum is 65.

The spelling of 1866835498007 in words is "one trillion, eight hundred sixty-six billion, eight hundred thirty-five million, four hundred ninety-eight thousand, seven".