1285799516760 has 64 divisors (see below), whose sum is σ = 4208071150080. Its totient is φ = 311708973440.

The previous prime is 1285799516753. The next prime is 1285799516761. The reversal of 1285799516760 is 676159975821.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 1285799516691 and 1285799516700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285799516761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487043952 + ... + 487046591.

It is an arithmetic number, because the mean of its divisors is an integer number (65751111720).

Almost surely, 2^{1285799516760} is an apocalyptic number.

1285799516760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1285799516760 is an abundant number, since it is smaller than the sum of its proper divisors (2922271633320).

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

1285799516760 is a wasteful number, since it uses less digits than its factorization.

1285799516760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974090568 (or 974090564 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 66.

The spelling of 1285799516760 in words is "one trillion, two hundred eighty-five billion, seven hundred ninety-nine million, five hundred sixteen thousand, seven hundred sixty".