1283969476509 has 16 divisors (see below), whose sum is σ = 1713214162560. Its totient is φ = 855352396800.

The previous prime is 1283969476483. The next prime is 1283969476513. The reversal of 1283969476509 is 9056749693821.

It is not a de Polignac number, because 1283969476509 - 2²³ = 1283961087901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283969476579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36122904 + ... + 36158430.

It is an arithmetic number, because the mean of its divisors is an integer number (107075885160).

It is a 1-persistent number, because it is pandigital, but 2⋅1283969476509 = 2567938953018 is not.

Almost surely, 2^{1283969476509} is an apocalyptic number.

It is an amenable number.

1283969476509 is a deficient number, since it is larger than the sum of its proper divisors (429244686051).

1283969476509 is a wasteful number, since it uses less digits than its factorization.

1283969476509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44020.

The product of its (nonzero) digits is 176359680, while the sum is 69.

The spelling of 1283969476509 in words is "one trillion, two hundred eighty-three billion, nine hundred sixty-nine million, four hundred seventy-six thousand, five hundred nine".