16742761218 has 12 divisors (see below), whose sum is σ = 36275982678. Its totient is φ = 5580920400.

The previous prime is 16742761199. The next prime is 16742761247. The reversal of 16742761218 is 81216724761.

16742761218 is a `hidden beast` number, since 1 + 6 + 7 + 4 + 27 + 612 + 1 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9303181209 + 7439580009 = 96453^2 + 86253^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 465076683 + ... + 465076718.

Almost surely, 2^16742761218 is an apocalyptic number.

16742761218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16742761218 is an abundant number, since it is smaller than the sum of its proper divisors (19533221460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16742761218 is a wasteful number, since it uses less digits than its factorization.

16742761218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930153409 (or 930153406 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The spelling of 16742761218 in words is "sixteen billion, seven hundred forty-two million, seven hundred sixty-one thousand, two hundred eighteen".