16973862613849 has 32 divisors (see below), whose sum is σ = 18268826780160. Its totient is φ = 15712955596800.

The previous prime is 16973862613843. The next prime is 16973862613853. The reversal of 16973862613849 is 94831626837961.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16973862613849 is a prime.

It is a super-2 number, since 2×16973862613849² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16973862613843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1020484837 + ... + 1020501469.

It is an arithmetic number, because the mean of its divisors is an integer number (570900836880).

Almost surely, 2^{16973862613849} is an apocalyptic number.

It is an amenable number.

16973862613849 is a deficient number, since it is larger than the sum of its proper divisors (1294964166311).

16973862613849 is a wasteful number, since it uses less digits than its factorization.

16973862613849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18681.

The product of its digits is 564350976, while the sum is 73.

The spelling of 16973862613849 in words is "sixteen trillion, nine hundred seventy-three billion, eight hundred sixty-two million, six hundred thirteen thousand, eight hundred forty-nine".