16742926811 has 4 divisors (see below), whose sum is σ = 18030844272. Its totient is φ = 15455009352.

The previous prime is 16742926807. The next prime is 16742926817. The reversal of 16742926811 is 11862924761.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11862924761 = 50147 ⋅236563.

It is a cyclic number.

It is not a de Polignac number, because 16742926811 - 2² = 16742926807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16742926817) 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, 643958711 + ... + 643958736.

It is an arithmetic number, because the mean of its divisors is an integer number (4507711068).

Almost surely, 2^16742926811 is an apocalyptic number.

16742926811 is a deficient number, since it is larger than the sum of its proper divisors (1287917461).

16742926811 is a wasteful number, since it uses less digits than its factorization.

16742926811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287917460.

The product of its digits is 290304, while the sum is 47.

The spelling of 16742926811 in words is "sixteen billion, seven hundred forty-two million, nine hundred twenty-six thousand, eight hundred eleven".