328215637138 has 8 divisors (see below), whose sum is σ = 508204857600. Its totient is φ = 158814017940.

The previous prime is 328215637133. The next prime is 328215637147. The reversal of 328215637138 is 831736512823.

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

It is a junction number, because it is equal to n+sod(n) for n = 328215637091 and 328215637100.

It is not an unprimeable number, because it can be changed into a prime (328215637133) 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, 2646900238 + ... + 2646900361.

It is an arithmetic number, because the mean of its divisors is an integer number (63525607200).

Almost surely, 2^328215637138 is an apocalyptic number.

328215637138 is a deficient number, since it is larger than the sum of its proper divisors (179989220462).

328215637138 is a wasteful number, since it uses less digits than its factorization.

328215637138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5293800632.

The product of its digits is 1451520, while the sum is 49.

The spelling of 328215637138 in words is "three hundred twenty-eight billion, two hundred fifteen million, six hundred thirty-seven thousand, one hundred thirty-eight".