1428657286508 has 24 divisors (see below), whose sum is σ = 2609373903360. Its totient is φ = 683134301520.

The previous prime is 1428657286493. The next prime is 1428657286519. The reversal of 1428657286508 is 8056827568241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1088468 + ... + 2010491.

It is an arithmetic number, because the mean of its divisors is an integer number (108723912640).

Almost surely, 2^{1428657286508} is an apocalyptic number.

It is an amenable number.

1428657286508 is a deficient number, since it is larger than the sum of its proper divisors (1180716616852).

1428657286508 is a wasteful number, since it uses less digits than its factorization.

1428657286508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3103997 (or 3103995 counting only the distinct ones).

The product of its (nonzero) digits is 51609600, while the sum is 62.

The spelling of 1428657286508 in words is "one trillion, four hundred twenty-eight billion, six hundred fifty-seven million, two hundred eighty-six thousand, five hundred eight".