16392678987 has 8 divisors (see below), whose sum is σ = 21857578704. Its totient is φ = 10928115968.

The previous prime is 16392678983. The next prime is 16392678989. The reversal of 16392678987 is 78987629361.

16392678987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16392678987 - 2² = 16392678983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16392678983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69523 + ... + 193955.

It is an arithmetic number, because the mean of its divisors is an integer number (2732197338).

Almost surely, 2^16392678987 is an apocalyptic number.

16392678987 is a deficient number, since it is larger than the sum of its proper divisors (5464899717).

16392678987 is a wasteful number, since it uses less digits than its factorization.

16392678987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168349.

The product of its digits is 54867456, while the sum is 66.

The spelling of 16392678987 in words is "sixteen billion, three hundred ninety-two million, six hundred seventy-eight thousand, nine hundred eighty-seven".