1283871616 has 16 divisors (see below), whose sum is σ = 2557713240. Its totient is φ = 641935744.

The previous prime is 1283871607. The next prime is 1283871643. The reversal of 1283871616 is 6161783821.

It is a tau number, because it is divible by the number of its divisors (16).

It is a zygodrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5014996 + ... + 5015251.

Almost surely, 2^1283871616 is an apocalyptic number.

1283871616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1283871616 is a deficient number, since it is larger than the sum of its proper divisors (1273841624).

1283871616 is an equidigital number, since it uses as much as digits as its factorization.

1283871616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10030261 (or 10030249 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 1283871616 is about 35831.1542655271. The cubic root of 1283871616 is about 1086.8606512980.

The spelling of 1283871616 in words is "one billion, two hundred eighty-three million, eight hundred seventy-one thousand, six hundred sixteen".