4866921900493 has 2 divisors, whose sum is σ = 4866921900494. Its totient is φ = 4866921900492.

The previous prime is 4866921900443. The next prime is 4866921900619. The reversal of 4866921900493 is 3940091296684.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3158144831689 + 1708777068804 = 1777117^2 + 1307202^2 .

It is a cyclic number.

It is not a de Polignac number, because 4866921900493 - 2³³ = 4858331965901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4866921900443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2433460950246 + 2433460950247.

It is an arithmetic number, because the mean of its divisors is an integer number (2433460950247).

Almost surely, 2^{4866921900493} is an apocalyptic number.

It is an amenable number.

4866921900493 is a deficient number, since it is larger than the sum of its proper divisors (1).

4866921900493 is an equidigital number, since it uses as much as digits as its factorization.

4866921900493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20155392, while the sum is 61.

The spelling of 4866921900493 in words is "four trillion, eight hundred sixty-six billion, nine hundred twenty-one million, nine hundred thousand, four hundred ninety-three".