1428516279 has 6 divisors (see below), whose sum is σ = 2063412416. Its totient is φ = 952344180.

The previous prime is 1428516251. The next prime is 1428516317. The reversal of 1428516279 is 9726158241.

1428516279 is a `hidden beast` number, since 14 + 2 + 8 + 5 + 1 + 627 + 9 = 666.

It is not a de Polignac number, because 1428516279 - 2⁷ = 1428516151 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 (1428514279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79362007 + ... + 79362024.

Almost surely, 2^1428516279 is an apocalyptic number.

1428516279 is a deficient number, since it is larger than the sum of its proper divisors (634896137).

1428516279 is a wasteful number, since it uses less digits than its factorization.

1428516279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158724037 (or 158724034 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 1428516279 is about 37795.7177336269. The cubic root of 1428516279 is about 1126.2333874366.

The spelling of 1428516279 in words is "one billion, four hundred twenty-eight million, five hundred sixteen thousand, two hundred seventy-nine".