428539501249 has 8 divisors (see below), whose sum is σ = 457617265920. Its totient is φ = 400415106000.

The previous prime is 428539501241. The next prime is 428539501277. The reversal of 428539501249 is 942105935824.

It is a happy number.

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 428539501249 - 2³ = 428539501241 is a prime.

It is a super-2 number, since 2×428539501249² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428539501196 and 428539501205.

It is not an unprimeable number, because it can be changed into a prime (428539501241) 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, 238341427 + ... + 238343224.

It is an arithmetic number, because the mean of its divisors is an integer number (57202158240).

Almost surely, 2^428539501249 is an apocalyptic number.

It is an amenable number.

428539501249 is a deficient number, since it is larger than the sum of its proper divisors (29077764671).

428539501249 is a wasteful number, since it uses less digits than its factorization.

428539501249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476684711.

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 428539501249 in words is "four hundred twenty-eight billion, five hundred thirty-nine million, five hundred one thousand, two hundred forty-nine".