16761899139 has 12 divisors (see below), whose sum is σ = 23741191704. Its totient is φ = 10517269504.

The previous prime is 16761899117. The next prime is 16761899149. The reversal of 16761899139 is 93199816761.

It is a happy number.

It is not a de Polignac number, because 16761899139 - 2⁵ = 16761899107 is a prime.

It is a super-3 number, since 3×16761899139³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (16761899149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9665742 + ... + 9667475.

It is an arithmetic number, because the mean of its divisors is an integer number (1978432642).

Almost surely, 2^16761899139 is an apocalyptic number.

16761899139 is a deficient number, since it is larger than the sum of its proper divisors (6979292565).

16761899139 is a wasteful number, since it uses less digits than its factorization.

16761899139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19333254 (or 19333237 counting only the distinct ones).

The product of its digits is 4408992, while the sum is 60.

The spelling of 16761899139 in words is "sixteen billion, seven hundred sixty-one million, eight hundred ninety-nine thousand, one hundred thirty-nine".