16949950447 has 4 divisors (see below), whose sum is σ = 16954571376. Its totient is φ = 16945329520.

The previous prime is 16949950411. The next prime is 16949950463. The reversal of 16949950447 is 74405994961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16949950447 - 2¹⁵ = 16949917679 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16949950391 and 16949950400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16949950547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2304958 + ... + 2312299.

It is an arithmetic number, because the mean of its divisors is an integer number (4238642844).

Almost surely, 2^16949950447 is an apocalyptic number.

16949950447 is a deficient number, since it is larger than the sum of its proper divisors (4620929).

16949950447 is an equidigital number, since it uses as much as digits as its factorization.

16949950447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4620928.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 16949950447 in words is "sixteen billion, nine hundred forty-nine million, nine hundred fifty thousand, four hundred forty-seven".