16958487794 has 8 divisors (see below), whose sum is σ = 25438646748. Its totient is φ = 8478938880.

The previous prime is 16958487781. The next prime is 16958487797. The reversal of 16958487794 is 49778485961.

It can be written as a sum of positive squares in 2 ways, for example, as 16024268569 + 934219225 = 126587^2 + 30565^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×16958487794⁴ (a number of 42 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (16958487797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75167 + ... + 198914.

Almost surely, 2^16958487794 is an apocalyptic number.

16958487794 is a deficient number, since it is larger than the sum of its proper divisors (8480158954).

16958487794 is a wasteful number, since it uses less digits than its factorization.

16958487794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305020.

The product of its digits is 121927680, while the sum is 68.

The spelling of 16958487794 in words is "sixteen billion, nine hundred fifty-eight million, four hundred eighty-seven thousand, seven hundred ninety-four".