16379923947 has 4 divisors (see below), whose sum is σ = 21839898600. Its totient is φ = 10919949296.

The previous prime is 16379923943. The next prime is 16379923949. The reversal of 16379923947 is 74932997361.

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 16379923947 - 2² = 16379923943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16379923943) 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, 2729987322 + ... + 2729987327.

It is an arithmetic number, because the mean of its divisors is an integer number (5459974650).

Almost surely, 2^16379923947 is an apocalyptic number.

16379923947 is a deficient number, since it is larger than the sum of its proper divisors (5459974653).

16379923947 is an equidigital number, since it uses as much as digits as its factorization.

16379923947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5459974652.

The product of its digits is 15431472, while the sum is 60.

The spelling of 16379923947 in words is "sixteen billion, three hundred seventy-nine million, nine hundred twenty-three thousand, nine hundred forty-seven".