16389233738 has 8 divisors (see below), whose sum is σ = 24930102240. Its totient is φ = 8079199660.

The previous prime is 16389233737. The next prime is 16389233761. The reversal of 16389233738 is 83733298361.

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

It is a self number, because there is not a number n which added to its sum of digits gives 16389233738.

It is not an unprimeable number, because it can be changed into a prime (16389233737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57708428 + ... + 57708711.

It is an arithmetic number, because the mean of its divisors is an integer number (3116262780).

Almost surely, 2^16389233738 is an apocalyptic number.

16389233738 is a deficient number, since it is larger than the sum of its proper divisors (8540868502).

16389233738 is a wasteful number, since it uses less digits than its factorization.

16389233738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115417212.

The product of its digits is 3919104, while the sum is 53.

The spelling of 16389233738 in words is "sixteen billion, three hundred eighty-nine million, two hundred thirty-three thousand, seven hundred thirty-eight".