213787666514 has 32 divisors (see below), whose sum is σ = 331847725440. Its totient is φ = 103230070272.

The previous prime is 213787666501. The next prime is 213787666523. The reversal of 213787666514 is 415666787312.

It is a happy number.

213787666514 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×213787666514³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213787666514.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8855492 + ... + 8879600.

It is an arithmetic number, because the mean of its divisors is an integer number (10370241420).

Almost surely, 2^213787666514 is an apocalyptic number.

213787666514 is a deficient number, since it is larger than the sum of its proper divisors (118060058926).

213787666514 is a wasteful number, since it uses less digits than its factorization.

213787666514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25314.

The product of its digits is 10160640, while the sum is 56.

The spelling of 213787666514 in words is "two hundred thirteen billion, seven hundred eighty-seven million, six hundred sixty-six thousand, five hundred fourteen".