16934744779 has 4 divisors (see below), whose sum is σ = 17090109520. Its totient is φ = 16779380040.

The previous prime is 16934744777. The next prime is 16934744797. The reversal of 16934744779 is 97744743961.

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 16934744779 - 2¹ = 16934744777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16934744777) 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, 77682207 + ... + 77682424.

It is an arithmetic number, because the mean of its divisors is an integer number (4272527380).

Almost surely, 2^16934744779 is an apocalyptic number.

16934744779 is a deficient number, since it is larger than the sum of its proper divisors (155364741).

16934744779 is a wasteful number, since it uses less digits than its factorization.

16934744779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155364740.

The product of its digits is 32006016, while the sum is 61.

The spelling of 16934744779 in words is "sixteen billion, nine hundred thirty-four million, seven hundred forty-four thousand, seven hundred seventy-nine".