16258989479 has 4 divisors (see below), whose sum is σ = 16655550240. Its totient is φ = 15862428720.

The previous prime is 16258989463. The next prime is 16258989503. The reversal of 16258989479 is 97498985261.

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 16258989479 - 2⁴ = 16258989463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16258989449) 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, 198280319 + ... + 198280400.

It is an arithmetic number, because the mean of its divisors is an integer number (4163887560).

Almost surely, 2^16258989479 is an apocalyptic number.

16258989479 is a deficient number, since it is larger than the sum of its proper divisors (396560761).

16258989479 is an equidigital number, since it uses as much as digits as its factorization.

16258989479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396560760.

The product of its digits is 78382080, while the sum is 68.

The spelling of 16258989479 in words is "sixteen billion, two hundred fifty-eight million, nine hundred eighty-nine thousand, four hundred seventy-nine".