16390507389 has 8 divisors (see below), whose sum is σ = 21858349920. Its totient is φ = 10924834896.

The previous prime is 16390507379. The next prime is 16390507429. The reversal of 16390507389 is 98370509361.

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

It is not a de Polignac number, because 16390507389 - 2⁴ = 16390507373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16390507349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524802 + ... + 555155.

It is an arithmetic number, because the mean of its divisors is an integer number (2732293740).

Almost surely, 2^16390507389 is an apocalyptic number.

It is an amenable number.

16390507389 is a deficient number, since it is larger than the sum of its proper divisors (5467842531).

16390507389 is a wasteful number, since it uses less digits than its factorization.

16390507389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085019.

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 16390507389 in words is "sixteen billion, three hundred ninety million, five hundred seven thousand, three hundred eighty-nine".