16042681939 has 16 divisors (see below), whose sum is σ = 17441582080. Its totient is φ = 14699789280.

The previous prime is 16042681937. The next prime is 16042681979. The reversal of 16042681939 is 93918624061.

It is a happy number.

It is not a de Polignac number, because 16042681939 - 2¹ = 16042681937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16042681892 and 16042681901.

It is not an unprimeable number, because it can be changed into a prime (16042681931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1202584 + ... + 1215850.

It is an arithmetic number, because the mean of its divisors is an integer number (1090098880).

Almost surely, 2^16042681939 is an apocalyptic number.

16042681939 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16042681939 is a deficient number, since it is larger than the sum of its proper divisors (1398900141).

16042681939 is a wasteful number, since it uses less digits than its factorization.

16042681939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15370.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 16042681939 in words is "sixteen billion, forty-two million, six hundred eighty-one thousand, nine hundred thirty-nine".