3400209361687 has 2 divisors, whose sum is σ = 3400209361688. Its totient is φ = 3400209361686.

The previous prime is 3400209361669. The next prime is 3400209361693. The reversal of 3400209361687 is 7861639020043.

It is a strong prime.

It is an emirp because it is prime and its reverse (7861639020043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3400209361687 - 2¹¹ = 3400209359639 is a prime.

It is a super-3 number, since 3×3400209361687³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 3400209361687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3400209361657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1700104680843 + 1700104680844.

It is an arithmetic number, because the mean of its divisors is an integer number (1700104680844).

Almost surely, 2^{3400209361687} is an apocalyptic number.

3400209361687 is a deficient number, since it is larger than the sum of its proper divisors (1).

3400209361687 is an equidigital number, since it uses as much as digits as its factorization.

3400209361687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 3400209361687 in words is "three trillion, four hundred billion, two hundred nine million, three hundred sixty-one thousand, six hundred eighty-seven".