428142615489 has 8 divisors (see below), whose sum is σ = 634285356320. Its totient is φ = 285428410308.

The previous prime is 428142615487. The next prime is 428142615619. The reversal of 428142615489 is 984516241824.

428142615489 is a `hidden beast` number, since 4 + 2 + 8 + 14 + 2 + 615 + 4 + 8 + 9 = 666.

It is not a de Polignac number, because 428142615489 - 2¹ = 428142615487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428142615487) 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, 7928566927 + ... + 7928566980.

It is an arithmetic number, because the mean of its divisors is an integer number (79285669540).

Almost surely, 2^428142615489 is an apocalyptic number.

It is an amenable number.

428142615489 is a deficient number, since it is larger than the sum of its proper divisors (206142740831).

428142615489 is a wasteful number, since it uses less digits than its factorization.

428142615489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15857133916 (or 15857133910 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The spelling of 428142615489 in words is "four hundred twenty-eight billion, one hundred forty-two million, six hundred fifteen thousand, four hundred eighty-nine".