1285661238483 has 8 divisors (see below), whose sum is σ = 1714220271568. Its totient is φ = 857104848864.

The previous prime is 1285661238479. The next prime is 1285661238497. The reversal of 1285661238483 is 3848321665821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1285661238483 - 2² = 1285661238479 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1285661238403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1335441 + ... + 2086797.

It is an arithmetic number, because the mean of its divisors is an integer number (214277533946).

Almost surely, 2^{1285661238483} is an apocalyptic number.

1285661238483 is a deficient number, since it is larger than the sum of its proper divisors (428559033085).

1285661238483 is an equidigital number, since it uses as much as digits as its factorization.

1285661238483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321733.

The product of its digits is 13271040, while the sum is 57.

The spelling of 1285661238483 in words is "one trillion, two hundred eighty-five billion, six hundred sixty-one million, two hundred thirty-eight thousand, four hundred eighty-three".