428265037213 has 4 divisors (see below), whose sum is σ = 461208501628. Its totient is φ = 395321572800.

The previous prime is 428265037201. The next prime is 428265037217. The reversal of 428265037213 is 312730562824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 170336147524 + 257928889689 = 412718^2 + 507867^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428265037213 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 428265037213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428265037217) 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, 16471732188 + ... + 16471732213.

It is an arithmetic number, because the mean of its divisors is an integer number (115302125407).

Almost surely, 2^428265037213 is an apocalyptic number.

It is an amenable number.

428265037213 is a deficient number, since it is larger than the sum of its proper divisors (32943464415).

428265037213 is a wasteful number, since it uses less digits than its factorization.

428265037213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32943464414.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 428265037213 in words is "four hundred twenty-eight billion, two hundred sixty-five million, thirty-seven thousand, two hundred thirteen".