210804040701 has 20 divisors (see below), whose sum is σ = 318151254652. Its totient is φ = 139087196928.

The previous prime is 210804040687. The next prime is 210804040721. The reversal of 210804040701 is 107040408012.

210804040701 is a `hidden beast` number, since 210 + 8 + 0 + 40 + 407 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 92072799225 + 118731241476 = 303435^2 + 344574^2 .

It is not a de Polignac number, because 210804040701 - 2⁵ = 210804040669 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210804040721) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13407190 + ... + 13422903.

Almost surely, 2^210804040701 is an apocalyptic number.

It is an amenable number.

210804040701 is a deficient number, since it is larger than the sum of its proper divisors (107347213951).

210804040701 is an equidigital number, since it uses as much as digits as its factorization.

210804040701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26830202 (or 26830193 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

Adding to 210804040701 its reverse (107040408012), we get a palindrome (317844448713).

The spelling of 210804040701 in words is "two hundred ten billion, eight hundred four million, forty thousand, seven hundred one".