16907948969 has 4 divisors (see below), whose sum is σ = 17797841040. Its totient is φ = 16018056900.

The previous prime is 16907948923. The next prime is 16907948989. The reversal of 16907948969 is 96984970961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96984970961 = 5059 ⋅19170779.

It is a cyclic number.

It is not a de Polignac number, because 16907948969 - 2²⁰ = 16906900393 is a prime.

It is a super-2 number, since 2×16907948969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16907948899 and 16907948908.

It is not an unprimeable number, because it can be changed into a prime (16907948989) 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, 444946007 + ... + 444946044.

It is an arithmetic number, because the mean of its divisors is an integer number (4449460260).

Almost surely, 2^16907948969 is an apocalyptic number.

16907948969 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

16907948969 is a deficient number, since it is larger than the sum of its proper divisors (889892071).

16907948969 is an equidigital number, since it uses as much as digits as its factorization.

16907948969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889892070.

The product of its (nonzero) digits is 52907904, while the sum is 68.

The spelling of 16907948969 in words is "sixteen billion, nine hundred seven million, nine hundred forty-eight thousand, nine hundred sixty-nine".