428186675314321 has 16 divisors (see below), whose sum is σ = 548271320307840. Its totient is φ = 324634334388480.

The previous prime is 428186675314319. The next prime is 428186675314373. The reversal of 428186675314321 is 123413576681824.

It is a cyclic number.

It is not a de Polignac number, because 428186675314321 - 2¹ = 428186675314319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 428186675314321.

It is not an unprimeable number, because it can be changed into a prime (428186615314321) 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, 75146833816 + ... + 75146839513.

It is an arithmetic number, because the mean of its divisors is an integer number (34266957519240).

Almost surely, 2^{428186675314321} is an apocalyptic number.

It is an amenable number.

428186675314321 is a deficient number, since it is larger than the sum of its proper divisors (120084644993519).

428186675314321 is a wasteful number, since it uses less digits than its factorization.

428186675314321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150293673384.

The product of its digits is 46448640, while the sum is 61.

The spelling of 428186675314321 in words is "four hundred twenty-eight trillion, one hundred eighty-six billion, six hundred seventy-five million, three hundred fourteen thousand, three hundred twenty-one".