428020280623 has 8 divisors (see below), whose sum is σ = 461019314448. Its totient is φ = 395031874944.

The previous prime is 428020280621. The next prime is 428020280627. The reversal of 428020280623 is 326082020824.

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

It is a cyclic number.

It is not a de Polignac number, because 428020280623 - 2¹ = 428020280621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428020280621) 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, 2573290 + ... + 2734567.

It is an arithmetic number, because the mean of its divisors is an integer number (57627414306).

Almost surely, 2^428020280623 is an apocalyptic number.

428020280623 is a deficient number, since it is larger than the sum of its proper divisors (32999033825).

428020280623 is a wasteful number, since it uses less digits than its factorization.

428020280623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5314073.

The product of its (nonzero) digits is 73728, while the sum is 37.

The spelling of 428020280623 in words is "four hundred twenty-eight billion, twenty million, two hundred eighty thousand, six hundred twenty-three".