1428239282550 has 24 divisors (see below), whose sum is σ = 3542033421096. Its totient is φ = 380863808640.

The previous prime is 1428239282479. The next prime is 1428239282611. The reversal of 1428239282550 is 552829328241.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1428239282493 and 1428239282502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4760797459 + ... + 4760797758.

It is an arithmetic number, because the mean of its divisors is an integer number (147584725879).

Almost surely, 2^{1428239282550} is an apocalyptic number.

1428239282550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1428239282550 is an abundant number, since it is smaller than the sum of its proper divisors (2113794138546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1428239282550 is a wasteful number, since it uses less digits than its factorization.

1428239282550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9521595232 (or 9521595227 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 1428239282550 in words is "one trillion, four hundred twenty-eight billion, two hundred thirty-nine million, two hundred eighty-two thousand, five hundred fifty".