16742948445 has 18 divisors (see below), whose sum is σ = 29022615258. Its totient is φ = 8929109568.

The previous prime is 16742948437. The next prime is 16742948449. The reversal of 16742948445 is 54484924761.

It can be written as a sum of positive squares in 3 ways, for example, as 4174968996 + 12567979449 = 64614^2 + 112107^2 .

It is not a de Polignac number, because 16742948445 - 2³ = 16742948437 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16742948391 and 16742948400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16742948449) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 858361 + ... + 877649.

Almost surely, 2^16742948445 is an apocalyptic number.

16742948445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16742948445 is a deficient number, since it is larger than the sum of its proper divisors (12279666813).

16742948445 is an frugal number, since it uses more digits than its factorization.

16742948445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38589 (or 19297 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 16742948445 in words is "sixteen billion, seven hundred forty-two million, nine hundred forty-eight thousand, four hundred forty-five".