16470776497 has 4 divisors (see below), whose sum is σ = 18823744576. Its totient is φ = 14117808420.

The previous prime is 16470776489. The next prime is 16470776521. The reversal of 16470776497 is 79467707461.

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: 79467707461 = 19 ⋅4182510919.

It is a cyclic number.

It is not a de Polignac number, because 16470776497 - 2³ = 16470776489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16470776407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1176484029 + ... + 1176484042.

It is an arithmetic number, because the mean of its divisors is an integer number (4705936144).

Almost surely, 2^16470776497 is an apocalyptic number.

It is an amenable number.

16470776497 is a deficient number, since it is larger than the sum of its proper divisors (2352968079).

16470776497 is an equidigital number, since it uses as much as digits as its factorization.

16470776497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352968078.

The product of its (nonzero) digits is 12446784, while the sum is 58.

The spelling of 16470776497 in words is "sixteen billion, four hundred seventy million, seven hundred seventy-six thousand, four hundred ninety-seven".